[Coroutines] Remove unused variable AsyncFuncTy

The last use was removed by:

  commit e760ec2a01fba0d90e2fea33cf99b75baa2c2a1c
  Author: Arnold Schwaighofer <aschwaighofer@apple.com>
  Date:   Thu Feb 11 08:25:31 2021 -0800

diff --git a/llvm/lib/Transforms/Coroutines/CoroInternal.h b/llvm/lib/Transforms/Coroutines/CoroInternal.h
index 3720903..067fb6b 100644 (file)
--- a/llvm/lib/Transforms/Coroutines/CoroInternal.h
+++ b/llvm/lib/Transforms/Coroutines/CoroInternal.h
@@ -127,7 +127,6 @@ struct LLVM_LIBRARY_VISIBILITY Shape {
   };
 
   struct AsyncLoweringStorage {
-    FunctionType *AsyncFuncTy;
     Value *Context;
     CallingConv::ID AsyncCC;
     unsigned ContextArgNo;