diff --git a/src/applications/audit/conduit/AuditQueryConduitAPIMethod.php b/src/applications/audit/conduit/AuditQueryConduitAPIMethod.php
--- a/src/applications/audit/conduit/AuditQueryConduitAPIMethod.php
+++ b/src/applications/audit/conduit/AuditQueryConduitAPIMethod.php
@@ -112,7 +112,7 @@
           'id'              => $request->getID(),
           'commitPHID'      => $request->getCommitPHID(),
           'auditorPHID'     => $request->getAuditorPHID(),
-          'reasons'         => $request->getAuditReasons(),
+          'reasons'         => array(),
           'status'          => $request->getAuditStatus(),
         );
       }
diff --git a/src/applications/audit/constants/PhabricatorAuditActionConstants.php b/src/applications/audit/constants/PhabricatorAuditActionConstants.php
--- a/src/applications/audit/constants/PhabricatorAuditActionConstants.php
+++ b/src/applications/audit/constants/PhabricatorAuditActionConstants.php
@@ -12,36 +12,4 @@
   const INLINE = 'audit:inline';
   const ACTION = 'audit:action';
 
-  public static function getActionNameMap() {
-    $map = array(
-      self::COMMENT      => pht('Comment'),
-      self::CONCERN      => pht("Raise Concern \xE2\x9C\x98"),
-      self::ACCEPT       => pht("Accept Commit \xE2\x9C\x94"),
-      self::RESIGN       => pht('Resign from Audit'),
-      self::CLOSE        => pht('Close Audit'),
-      self::ADD_CCS      => pht('Add Subscribers'),
-      self::ADD_AUDITORS => pht('Add Auditors'),
-    );
-
-    return $map;
-  }
-
-  public static function getActionName($constant) {
-    $map = self::getActionNameMap();
-    return idx($map, $constant, pht('Unknown'));
-  }
-
-  public static function getActionPastTenseVerb($action) {
-    $map = array(
-      self::COMMENT      => pht('commented on'),
-      self::CONCERN      => pht('raised a concern with'),
-      self::ACCEPT       => pht('accepted'),
-      self::RESIGN       => pht('resigned from'),
-      self::CLOSE        => pht('closed'),
-      self::ADD_CCS      => pht('added CCs to'),
-      self::ADD_AUDITORS => pht('added auditors to'),
-    );
-    return idx($map, $action, pht('updated'));
-  }
-
 }
diff --git a/src/applications/audit/editor/PhabricatorAuditEditor.php b/src/applications/audit/editor/PhabricatorAuditEditor.php
--- a/src/applications/audit/editor/PhabricatorAuditEditor.php
+++ b/src/applications/audit/editor/PhabricatorAuditEditor.php
@@ -5,7 +5,6 @@
 
   const MAX_FILES_SHOWN_IN_EMAIL = 1000;
 
-  private $auditReasonMap = array();
   private $affectedFiles;
   private $rawPatch;
   private $auditorPHIDs = array();
@@ -13,26 +12,6 @@
   private $didExpandInlineState = false;
   private $oldAuditStatus = null;
 
-  public function addAuditReason($phid, $reason) {
-    if (!isset($this->auditReasonMap[$phid])) {
-      $this->auditReasonMap[$phid] = array();
-    }
-    $this->auditReasonMap[$phid][] = $reason;
-    return $this;
-  }
-
-  private function getAuditReasons($phid) {
-    if (isset($this->auditReasonMap[$phid])) {
-      return $this->auditReasonMap[$phid];
-    }
-    if ($this->getIsHeraldEditor()) {
-      $name = 'herald';
-    } else {
-      $name = $this->getActor()->getUsername();
-    }
-    return array(pht('Added by %s.', $name));
-  }
-
   public function setRawPatch($patch) {
     $this->rawPatch = $patch;
     return $this;
@@ -62,7 +41,6 @@
     // TODO: These will get modernized eventually, but that can happen one
     // at a time later on.
     $types[] = PhabricatorAuditActionConstants::INLINE;
-    $types[] = PhabricatorAuditActionConstants::ADD_AUDITORS;
 
     return $types;
   }
@@ -107,10 +85,6 @@
       case PhabricatorAuditActionConstants::INLINE:
       case PhabricatorAuditTransaction::TYPE_COMMIT:
         return null;
-      case PhabricatorAuditActionConstants::ADD_AUDITORS:
-        // TODO: For now, just record the added PHIDs. Eventually, turn these
-        // into real edge transactions, probably?
-        return array();
     }
 
     return parent::getCustomTransactionOldValue($object, $xaction);
@@ -122,7 +96,6 @@
 
     switch ($xaction->getTransactionType()) {
       case PhabricatorAuditActionConstants::INLINE:
-      case PhabricatorAuditActionConstants::ADD_AUDITORS:
       case PhabricatorAuditTransaction::TYPE_COMMIT:
         return $xaction->getNewValue();
     }
@@ -136,7 +109,6 @@
 
     switch ($xaction->getTransactionType()) {
       case PhabricatorAuditActionConstants::INLINE:
-      case PhabricatorAuditActionConstants::ADD_AUDITORS:
       case PhabricatorAuditTransaction::TYPE_COMMIT:
         return;
     }
@@ -157,57 +129,6 @@
           $reply->setHasReplies(1)->save();
         }
         return;
-      case PhabricatorAuditActionConstants::ADD_AUDITORS:
-        $new = $xaction->getNewValue();
-        if (!is_array($new)) {
-          $new = array();
-        }
-
-        $old = $xaction->getOldValue();
-        if (!is_array($old)) {
-          $old = array();
-        }
-
-        $add = array_diff_key($new, $old);
-
-        $actor = $this->requireActor();
-
-        $requests = $object->getAudits();
-        $requests = mpull($requests, null, 'getAuditorPHID');
-        foreach ($add as $phid) {
-          if (isset($requests[$phid])) {
-            $request = $requests[$phid];
-
-            // Only update an existing request if the current status is not
-            // an interesting status.
-            if ($request->isInteresting()) {
-              continue;
-            }
-          } else {
-            $request = id(new PhabricatorRepositoryAuditRequest())
-              ->setCommitPHID($object->getPHID())
-              ->setAuditorPHID($phid);
-          }
-
-          if ($this->getIsHeraldEditor()) {
-            $audit_requested = $xaction->getMetadataValue('auditStatus');
-            $audit_reason_map = $xaction->getMetadataValue('auditReasonMap');
-            $audit_reason = $audit_reason_map[$phid];
-          } else {
-            $audit_requested = PhabricatorAuditStatusConstants::AUDIT_REQUESTED;
-            $audit_reason = $this->getAuditReasons($phid);
-          }
-
-          $request
-            ->setAuditStatus($audit_requested)
-            ->setAuditReasons($audit_reason)
-            ->save();
-
-          $requests[$phid] = $request;
-        }
-
-        $object->attachAudits($requests);
-        return;
     }
 
     return parent::applyCustomExternalTransaction($object, $xaction);
@@ -389,7 +310,7 @@
       return array();
     }
 
-    return id(new PhabricatorAuditTransaction())
+    return $commit->getApplicationTransactionTemplate()
       ->setTransactionType(DiffusionCommitAuditorsTransaction::TRANSACTIONTYPE)
       ->setNewValue(
         array(
diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -855,12 +855,6 @@
         PhabricatorAuditStatusConstants::getStatusColor($code),
         PhabricatorAuditStatusConstants::getStatusName($code));
 
-      $note = array();
-      foreach ($request->getAuditReasons() as $reason) {
-        $note[] = phutil_tag('div', array(), $reason);
-      }
-      $item->setNote($note);
-
       $auditor_phid = $request->getAuditorPHID();
       $target = $viewer->renderHandle($auditor_phid);
       $item->setTarget($target);
diff --git a/src/applications/diffusion/query/DiffusionCommitQuery.php b/src/applications/diffusion/query/DiffusionCommitQuery.php
--- a/src/applications/diffusion/query/DiffusionCommitQuery.php
+++ b/src/applications/diffusion/query/DiffusionCommitQuery.php
@@ -135,14 +135,6 @@
     return $this;
   }
 
-  public function withAuditStatus($status) {
-    // TODO: Replace callers with `withStatuses()`.
-    return $this->withStatuses(
-      array(
-        $status,
-      ));
-  }
-
   public function withEpochRange($min, $max) {
     $this->epochMin = $min;
     $this->epochMax = $max;