Issue #2083947 followup by echoz: System.module: Update use of icons to new standards.

core/modules/system/css/system.admin.css

@@ -165,27 +165,26 @@ a.module-link {
   margin-top: 2px;
   float: left; /* LTR */
 }
+[dir="rtl"] a.module-link {
+  float: right;
+}
 a.module-link-help {
-  background: url(../../../misc/icons/787878/questionmark-disc.svg) 0 50% no-repeat; /* LTR */
+  background: url(../../../misc/icons/787878/questionmark-disc.svg) 0 50% no-repeat;
 }
 .no-svg a.module-link-help {
-  background: url(../../../misc/icons/787878/questionmark-disc.png) 0 50% no-repeat; /* LTR */
+  background: url(../../../misc/icons/787878/questionmark-disc.png) 0 50% no-repeat;
 }
 a.module-link-permissions {
-  background: url(../../../misc/icons/787878/key.svg) 0 50% no-repeat; /* LTR */
+  background: url(../../../misc/icons/787878/key.svg) 0 50% no-repeat;
 }
 .no-svg a.module-link-permissions {
-  background: url(../../../misc/icons/787878/key.png) 0 50% no-repeat; /* LTR */
+  background: url(../../../misc/icons/787878/key.png) 0 50% no-repeat;
 }
 a.module-link-configure {
-  background: url(../../../misc/icons/787878/cog.svg) 0 50% no-repeat; /* LTR */
+  background: url(../../../misc/icons/787878/cog.svg) 0 50% no-repeat;
 }
 .no-svg a.module-link-configure {
-  background: url(../../../misc/icons/787878/cog.svg) 0 50% no-repeat; /* LTR */
-}
-.module-help {
-  margin-left: 1em; /* LTR */
-  float: right; /* LTR */
+  background: url(../../../misc/icons/787878/cog.png) 0 50% no-repeat;
 }
 
 /**

core/modules/system/css/system.module.css

@@ -106,18 +106,14 @@ a.tabledrag-handle:hover {
   text-decoration: none;
 }
 a.tabledrag-handle .handle {
-  background: url(../../../misc/icons/787878/move.svg) no-repeat 6px 9px;
-  height: 13px;
-  margin: -0.4em 0.5em; /* LTR */
-  padding: 0.42em 0.5em; /* LTR */
-  width: 13px;
+  background: url(../../../misc/icons/787878/move.svg) no-repeat 6px 7px;
+  height: 14px;
+  margin: -0.4em 0.5em 0;
+  padding: 0.42em 0.5em;
+  width: 14px;
 }
 .no-svg a.tabledrag-handle .handle {
-  background: url(../../../misc/icons/787878/move.svg) no-repeat 6px 9px;
-}
-[dir="rtl"] a.tabledrag-handle .handle {
-  margin: -0.4em 0.5em;
-  padding: 0.42em 0.5em;
+  background-image: url(../../../misc/icons/787878/move.png);
 }
 .touch .draggable td {
   padding: 0 10px;