bug 174072, remove italic definition from modern plugins.css because italic system font comes up unreadable on old win32 systems, r=beppe, sr=bzbarsky

themes/modern/communicator/plugins.css

@@ -91,10 +91,6 @@ dl {
   margin: 0px 0px 3px 0px;
 }
 
-span.label {
-  font-style: italic;
-}
-
 table {
   background-color: #C7D0D9;
   color: #22262F;