Bug 1435285 - Remove invalid fwd-declaration of enum without explicit base type; while we're here, also remove an obsolete comment. r=emilio

layout/style/ServoBindings.h

@@ -23,8 +23,7 @@
 #include "nsStyleStruct.h"
 
 /*
- * API for Servo to access Gecko data structures. This file must compile as valid
- * C code in order for the binding generator to parse it.
+ * API for Servo to access Gecko data structures.
  *
  * Functions beginning with Gecko_ are implemented in Gecko and invoked from Servo.
  * Functions beginning with Servo_ are implemented in Servo and invoked from Gecko.
@@ -41,7 +40,6 @@ namespace mozilla {
   class SharedFontList;
   enum class CSSPseudoElementType : uint8_t;
   struct Keyframe;
-  enum Side;
   struct StyleTransition;
   namespace css {
     class ErrorReporter;