Separating theme from layout for CSS files.

Change-Id: I4c3cec28b30de8026df4298f65ebf6ad92faf68f
(cherry picked from commit 11f662f)
diff --git a/web/gui/src/main/webapp/app/fw/widget/toolbar.css b/web/gui/src/main/webapp/app/fw/widget/toolbar.css
index 7603091..cb5777a 100644
--- a/web/gui/src/main/webapp/app/fw/widget/toolbar.css
+++ b/web/gui/src/main/webapp/app/fw/widget/toolbar.css
@@ -15,17 +15,9 @@
  */
 
 /*
- ONOS GUI -- Toolbar Service -- CSS file
+ ONOS GUI -- Toolbar Service (layout) -- CSS file
  */
 
-.light .tbar-arrow svg.embeddedIcon .icon .glyph {
-    fill: #838383;
-}
-.dark .tbar-arrow svg.embeddedIcon .icon .glyph {
-    fill: #B2B2B2;
-}
-
-
 div.tbar-arrow {
     position: absolute;
     top: 53%;
@@ -42,17 +34,6 @@
     margin-right: -3%;
 }
 
-.tbar-arrow svg.embeddedIcon .icon rect {
-    stroke: none;
-}
-.light .tbar-arrow svg.embeddedIcon .icon rect {
-    fill: none;
-}
-.dark .tbar-arrow svg.embeddedIcon .icon rect {
-    fill: none;
-}
-
-
 .toolbar {
     line-height: 125%;
 }
@@ -60,8 +41,6 @@
     display: inline-block;
 }
 
-
-
 .separator {
     border: 1px solid;
     margin: 0 4px 0 4px;
@@ -69,9 +48,3 @@
     height: 23px;
     width: 0;
 }
-.light .separator {
-    border-color: #ddd;
-}
-.dark .separator {
-    border-color: #1A1A1A;
-}