Fix for ONOS-3428 - remove width constraint to intent view control buttons.

Change-Id: I7007d0a90e1a0a5a49aecd09c6058df6512e0e35
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 72a52f6..223168f 100644
--- a/web/gui/src/main/webapp/app/view/intent/intent.css
+++ b/web/gui/src/main/webapp/app/view/intent/intent.css
@@ -23,7 +23,6 @@
 }
 
 #ov-intent div.ctrl-btns {
-    width: 150px;
 }