Separating theme from layout for CSS files.

Change-Id: I4c3cec28b30de8026df4298f65ebf6ad92faf68f
(cherry picked from commit 11f662f)
diff --git a/web/gui/src/main/webapp/app/view/intent/intent.css b/web/gui/src/main/webapp/app/view/intent/intent.css
index ed002b4..223168f 100644
--- a/web/gui/src/main/webapp/app/view/intent/intent.css
+++ b/web/gui/src/main/webapp/app/view/intent/intent.css
@@ -15,7 +15,7 @@
  */
 
 /*
- ONOS GUI -- Intent View -- CSS file
+ ONOS GUI -- Intent View (layout) -- CSS file
  */
 
 #ov-intent h2 {
@@ -25,46 +25,8 @@
 #ov-intent div.ctrl-btns {
 }
 
-.light #ov-intent tr:nth-child(6n + 1),
-.light #ov-intent tr:nth-child(6n + 2),
-.light #ov-intent tr:nth-child(6n + 3) {
-    background-color: #eee;
-}
-.light #ov-intent tr:nth-child(6n + 4),
-.light #ov-intent tr:nth-child(6n + 5),
-.light #ov-intent tr:nth-child(6n) {
-    background-color: #ddd;
-}
-.dark #ov-intent tr:nth-child(6n + 1),
-.dark #ov-intent tr:nth-child(6n + 2),
-.dark #ov-intent tr:nth-child(6n + 3) {
-    background-color: #444;
-}
-.dark #ov-intent tr:nth-child(6n + 4),
-.dark #ov-intent tr:nth-child(6n + 5),
-.dark #ov-intent tr:nth-child(6n) {
-    background-color: #333;
-}
-
-.light #ov-intent tr:nth-child(6n + 1).data-change,
-.light #ov-intent tr:nth-child(6n + 2).data-change,
-.light #ov-intent tr:nth-child(6n + 3).data-change,
-.light #ov-intent tr:nth-child(6n + 4).data-change,
-.light #ov-intent tr:nth-child(6n + 5).data-change,
-.light #ov-intent tr:nth-child(6n).data-change {
-    background-color: #FDFFDC;
-}
-.dark #ov-intent tr:nth-child(6n + 1).data-change,
-.dark #ov-intent tr:nth-child(6n + 2).data-change,
-.dark #ov-intent tr:nth-child(6n + 3).data-change,
-.dark #ov-intent tr:nth-child(6n + 4).data-change,
-.dark #ov-intent tr:nth-child(6n + 5).data-change,
-.dark #ov-intent tr:nth-child(6n).data-change {
-    background-color: #5A5600;
-}
 
 #ov-intent td.resources,
 #ov-intent td.details {
     padding-left: 36px;
-    opacity: 0.65;
 }