[NFC] Remove Unused Member from ParameterizedProtocolType

CodaFi · CodaFi · commit 0026a30901ac · 2022-03-07T22:54:22.000-08:00
diff --git a/include/swift/AST/Types.h b/include/swift/AST/Types.h
@@ -5272,7 +5272,6 @@ class ParameterizedProtocolType final : public TypeBase,
   friend TrailingObjects;
 
   ProtocolType *Base;
-  Type Arg;
 
 public:
   /// Retrieve an instance of a protocol composition type with the
