remove redundant selector - fixes #39

Author: Marco Scannadinari

core-drawer-panel.css

@@ -40,11 +40,6 @@ right-drawer: make drawer on the right side
   right: 0;
 }
 
-.right-drawer.transition > #drawer {
-  transition: -webkit-transform ease-in-out 0.3s, width ease-in-out 0.3s;
-  transition: transform ease-in-out 0.3s, width ease-in-out 0.3s;
-}
-
 polyfill-next-selector { content: ':host [drawer]'; }
 ::content[select="[drawer]"] > * {
   position: absolute;