diff --git a/src/applications/differential/field/specification/DifferentialDateCreatedFieldSpecification.php b/src/applications/differential/field/specification/DifferentialDateCreatedFieldSpecification.php
index 8c74841a58..20d5685981 100644
--- a/src/applications/differential/field/specification/DifferentialDateCreatedFieldSpecification.php
+++ b/src/applications/differential/field/specification/DifferentialDateCreatedFieldSpecification.php
@@ -11,10 +11,6 @@ final class DifferentialDateCreatedFieldSpecification
     return 'Created';
   }
 
-  public function getColumnClassForRevisionList() {
-    return 'right';
-  }
-
   public function renderValueForRevisionList(DifferentialRevision $revision) {
     return phabricator_date($revision->getDateCreated(), $this->getUser());
   }
diff --git a/src/applications/differential/field/specification/DifferentialDateModifiedFieldSpecification.php b/src/applications/differential/field/specification/DifferentialDateModifiedFieldSpecification.php
index f3ea757d01..d23d4a4be2 100644
--- a/src/applications/differential/field/specification/DifferentialDateModifiedFieldSpecification.php
+++ b/src/applications/differential/field/specification/DifferentialDateModifiedFieldSpecification.php
@@ -11,10 +11,6 @@ final class DifferentialDateModifiedFieldSpecification
     return 'Updated';
   }
 
-  public function getColumnClassForRevisionList() {
-    return 'right';
-  }
-
   public function renderValueForRevisionList(DifferentialRevision $revision) {
     return phabricator_datetime($revision->getDateModified(), $this->getUser());
   }