Revert "Issue #2352857 by thamas: Fixed Improve the display of trigger icon (pencil)."

Needs more discussion.

This reverts commit b983fad1.

core/modules/contextual/css/contextual.theme.css

@@ -31,26 +31,25 @@
 .contextual .trigger {
   background-attachment: scroll;
   background-color: #fff;
-  border: none;
-  border-radius: 14px;
+  border: 1px solid #ddd;
+  border-radius: 13px;
   box-shadow: 1px 1px 2px rgba(0,0,0,0.3);
   float: right; /* LTR */
   margin: 0;
   overflow: hidden;
   padding: 0 2px;
   position: relative;
-  right: 6px; /* LTR */
+  right: 2px; /* LTR */
   cursor: pointer;
 }
 [dir="rtl"] .contextual .trigger {
   float: left;
   right: auto;
-  left: 6px;
+  left: 2px;
 }
 .contextual.open .trigger {
-  border: 1px solid #ddd;
   border-bottom-color: transparent;
-  border-radius: 14px 14px 0 0;
+  border-radius: 13px 13px 0 0;
   box-shadow: none;
   z-index: 2;
 }
@@ -69,7 +68,7 @@
   margin: 0;
   padding: 0.25em 0;
   position: relative;
-  right: 6px; /* LTR */
+  right: 2px; /* LTR */
   text-align: left; /* LTR */
   top: -1px;
   white-space: nowrap;
@@ -77,7 +76,7 @@
 [dir="rtl"] .contextual-region .contextual .contextual-links {
   border-radius: 0 4px 4px 4px;
   float: left;
-  left: 6px;
+  left: 2px;
   right: auto;
   text-align: right;
 }