diff --git a/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php b/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
--- a/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
+++ b/src/applications/differential/config/PhabricatorDifferentialConfigOptions.php
@@ -110,14 +110,6 @@
             'sketchy and implies the revision may not actually be receiving '.
             'thorough review. You can enable "!accept" by setting this '.
             'option to true.')),
-      $this->newOption('differential.generated-paths', 'list<regex>', array())
-        ->setSummary(pht('File regexps to treat as automatically generated.'))
-        ->setDescription(
-          pht(
-            'List of file regexps that should be treated as if they are '.
-            'generated by an automatic process, and thus get hidden by '.
-            'default in differential.'))
-        ->addExample("/config\.h$/\n#/autobuilt/#", pht('Valid Setting')),
       $this->newOption('differential.sticky-accept', 'bool', true)
         ->setBoolOptions(
           array(
diff --git a/src/applications/differential/parser/DifferentialChangesetParser.php b/src/applications/differential/parser/DifferentialChangesetParser.php
--- a/src/applications/differential/parser/DifferentialChangesetParser.php
+++ b/src/applications/differential/parser/DifferentialChangesetParser.php
@@ -406,39 +406,17 @@
   }
 
   private function markGenerated($new_corpus_block = '') {
-    $generated_guess = (strpos($new_corpus_block, '@'.'generated') !== false);
+    $generated = (strpos($new_corpus_block, '@'.'generated') !== false);
 
-    if (!$generated_guess) {
+    if (!$generated) {
       foreach ($this->generatedPaths as $regex) {
         if (preg_match($regex, $this->changeset->getFilename())) {
-          $generated_guess = true;
+          $generated = true;
           break;
         }
       }
     }
 
-    // The following is deprecated and should not be used.
-    if (!$generated_guess) {
-      $generated_path_regexps = PhabricatorEnv::getEnvConfig(
-        'differential.generated-paths');
-      foreach ($generated_path_regexps as $regexp) {
-        if (preg_match($regexp, $this->changeset->getFilename())) {
-          $generated_guess = true;
-          break;
-        }
-      }
-    }
-
-    $event = new PhabricatorEvent(
-      PhabricatorEventType::TYPE_DIFFERENTIAL_WILLMARKGENERATED,
-      array(
-        'corpus' => $new_corpus_block,
-        'is_generated' => $generated_guess,
-      )
-    );
-    PhutilEventEngine::dispatchEvent($event);
-
-    $generated = $event->getValue('is_generated');
     $this->specialAttributes[self::ATTR_GENERATED] = $generated;
   }