Revert of MD Settings: long dialog body should have overscroll line.

chrome/test/data/webui/cr_elements/cr_dialog_test.js

Index: chrome/test/data/webui/cr_elements/cr_dialog_test.js
diff --git a/chrome/test/data/webui/cr_elements/cr_dialog_test.js b/chrome/test/data/webui/cr_elements/cr_dialog_test.js
index 559de8d4791efff19cc5931cd9dae2e3cd5b316d..5f9c1b1fa3be8f5c9797990b7e55b255bc72d60d 100644
--- a/chrome/test/data/webui/cr_elements/cr_dialog_test.js
+++ b/chrome/test/data/webui/cr_elements/cr_dialog_test.js
@@ -44,32 +44,4 @@
     expectNotEquals(dialog, document.activeElement);
     expectEquals(button, document.activeElement);
   });
-
-  test('dialog body indicates over-scroll when appropriate', function() {
-    document.body.innerHTML = `
-      <dialog is="cr-dialog" show-scroll-borders>
-        <div class="title">title</div>
-        <div class="body">body</div>
-      </dialog>`;
-
-    var dialog = document.body.querySelector('dialog');
-    var innerBody = document.body.querySelector('.body');
-    var bodyContainer = dialog.$$('.body-container');
-    assertTrue(!!bodyContainer);
-
-    // Height is normally set via CSS, but mixin doesn't work with innerHTML.
-    bodyContainer.style.height = '1px';
-    innerBody.style.height = '100px';
-    dialog.showModal();
-
-    return PolymerTest.flushTasks()
-        .then(function() {
-          assertTrue(bodyContainer.classList.contains('bottom-scrollable'));
-          bodyContainer.scrollTop = 100;
-          return PolymerTest.flushTasks();
-        })
-        .then(function() {
-          assertFalse(bodyContainer.classList.contains('bottom-scrollable'));
-        });
-  });
 });