diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -9,10 +9,10 @@
   'names' => array(
     'conpherence.pkg.css' => '79a197f6',
     'conpherence.pkg.js' => '020aebcf',
-    'core.pkg.css' => '267f6955',
+    'core.pkg.css' => '00322568',
     'core.pkg.js' => '086da722',
     'dark-console.pkg.js' => '187792c2',
-    'differential.pkg.css' => '91ac6214',
+    'differential.pkg.css' => '94753559',
     'differential.pkg.js' => '46fcb3af',
     'diffusion.pkg.css' => '354279ea',
     'diffusion.pkg.js' => '78c9885d',
@@ -65,7 +65,6 @@
     'rsrc/css/application/differential/changeset-view.css' => '979e688c',
     'rsrc/css/application/differential/core.css' => '7300a73e',
     'rsrc/css/application/differential/phui-inline-comment.css' => 'bcbaff3d',
-    'rsrc/css/application/differential/revision-comment.css' => '745647df',
     'rsrc/css/application/differential/revision-history.css' => '237a2979',
     'rsrc/css/application/differential/revision-list.css' => '93d2df7d',
     'rsrc/css/application/differential/table-of-contents.css' => 'bba788b9',
@@ -111,7 +110,7 @@
     'rsrc/css/core/core.css' => '83d97073',
     'rsrc/css/core/remarkup.css' => '03b6c819',
     'rsrc/css/core/syntax.css' => '548567f6',
-    'rsrc/css/core/z-index.css' => 'ac3bfcd4',
+    'rsrc/css/core/z-index.css' => 'b39764ec',
     'rsrc/css/diviner/diviner-shared.css' => '4bd263b0',
     'rsrc/css/font/font-awesome.css' => 'a8d83a0c',
     'rsrc/css/font/font-lato.css' => '23631304',
@@ -562,7 +561,6 @@
     'differential-changeset-view-css' => '979e688c',
     'differential-core-view-css' => '7300a73e',
     'differential-revision-add-comment-css' => '7e5900d9',
-    'differential-revision-comment-css' => '745647df',
     'differential-revision-history-css' => '237a2979',
     'differential-revision-list-css' => '93d2df7d',
     'differential-table-of-contents-css' => 'bba788b9',
@@ -808,7 +806,7 @@
     'phabricator-title' => '43bc9360',
     'phabricator-tooltip' => '83754533',
     'phabricator-ui-example-css' => '549e220b',
-    'phabricator-zindex-css' => 'ac3bfcd4',
+    'phabricator-zindex-css' => 'b39764ec',
     'phame-css' => '209125c7',
     'pholio-css' => '10ac89b5',
     'pholio-edit-css' => '4df55b3b',
@@ -2400,7 +2398,6 @@
       'differential-revision-history-css',
       'differential-revision-list-css',
       'differential-table-of-contents-css',
-      'differential-revision-comment-css',
       'differential-revision-add-comment-css',
       'phabricator-object-selector-css',
       'phabricator-content-source-view-css',
diff --git a/resources/celerity/packages.php b/resources/celerity/packages.php
--- a/resources/celerity/packages.php
+++ b/resources/celerity/packages.php
@@ -190,7 +190,6 @@
     'differential-revision-history-css',
     'differential-revision-list-css',
     'differential-table-of-contents-css',
-    'differential-revision-comment-css',
     'differential-revision-add-comment-css',
     'phabricator-object-selector-css',
     'phabricator-content-source-view-css',
diff --git a/webroot/rsrc/css/application/differential/revision-comment.css b/webroot/rsrc/css/application/differential/revision-comment.css
deleted file mode 100644
--- a/webroot/rsrc/css/application/differential/revision-comment.css
+++ /dev/null
@@ -1,47 +0,0 @@
-/**
- * @provides differential-revision-comment-css
- */
-
-/*  Spooky haunted panel which floats on the bottom of the screen.
-    Haunt modes are:
-
-      - Mode 1: Just the comment box.
-      - Mode 2: Comment box, comment preview, and inline comment previews.
-*/
-.differential-haunt-mode-1 .differential-add-comment-panel,
-.differential-haunt-mode-2 .differential-add-comment-panel {
-  background-color: #fff;
-  position: fixed;
-  width: 100%;
-  bottom: 0;
-  right: 0;
-  left: 0;
-  overflow: auto;
-  max-height: 375px;
-  margin: 0;
-
-  box-shadow: 0 0 4px #000;
-}
-
-.differential-haunt-mode-1 .differential-add-comment-panel .phui-box,
-.differential-haunt-mode-2 .differential-add-comment-panel .phui-box {
-  margin: 0;
-  border-width: 0;
-}
-
-.differential-haunt-mode-2 .differential-add-comment-panel {
-  max-height: 75%;
-}
-
-.differential-haunt-mode-1 .differential-add-comment-panel .phui-header-shell,
-.differential-haunt-mode-2 .differential-add-comment-panel .phui-header-shell {
-  display: none;
-}
-
-.differential-haunt-mode-1 .aphront-panel-preview {
-  display: none;
-}
-
-.differential-haunt-mode-1 {
-  padding-bottom: 250px;
-}
diff --git a/webroot/rsrc/css/core/z-index.css b/webroot/rsrc/css/core/z-index.css
--- a/webroot/rsrc/css/core/z-index.css
+++ b/webroot/rsrc/css/core/z-index.css
@@ -97,11 +97,6 @@
   z-index: 8;
 }
 
-.differential-haunt-mode-1 .differential-add-comment-panel,
-.differential-haunt-mode-2 .differential-add-comment-panel {
-  z-index: 8;
-}
-
 .remarkup-assist-pinned {
   z-index: 8;
 }