Merge branch 'winh-shame-ms-clear' into 'master'

Add .ms-no-clear to disable duplicate clear icon in IE / Edge

See merge request gitlab-org/gitlab-ce!24640

app/assets/stylesheets/framework/common.scss

@@ -408,3 +408,14 @@ img.emoji {
 .gl-pr-3 { padding-right: #{2 * $grid-size}; }
 .gl-pr-4 { padding-right: #{3 * $grid-size}; }
 .gl-pr-5 { padding-right: #{4 * $grid-size}; }
+
+/**
+ * Removes browser specific clear icon from input fields in
+ * Internet Explorer 10, Internet Explorer 11, and Microsoft Edge.
+ * This is intended for elements which add a customized clear icon.
+ *
+ * see also https://developer.mozilla.org/en-US/docs/Web/CSS/::-ms-clear
+ */
+.ms-no-clear ::-ms-clear {
+  display: none;
+}