Bug 1302513 Part 4: Remove the nsCSSValue::Serialization eAuthorSpecified enum, which is no longer used. r=dholbert

MozReview-Commit-ID: 1gmiFyULMsZ

--HG--
extra : rebase_source : 1d4220101105e61168eec491a242a74060f7d417

layout/style/nsCSSValue.h

@@ -616,7 +616,7 @@ public:
   }
 
   // Enum for AppendToString's aValueSerialization argument.
-  enum Serialization { eNormalized, eAuthorSpecified };
+  enum Serialization { eNormalized };
 
   /**
    * Serialize |this| as a specified value for |aProperty| and append