revert changes, update comment

Author: mikea

llvm/include/llvm-c/Core.h

@@ -2543,6 +2543,7 @@ void LLVMSetUnnamedAddress(LLVMValueRef Global, LLVMUnnamedAddr UnnamedAddr);
  * type of a global value which is always a pointer type.
  *
  * @see llvm::GlobalValue::getValueType()
+ * @see llvm::Function::getFunctionType()
  */
 LLVMTypeRef LLVMGlobalGetValueType(LLVMValueRef Global);
 
@@ -3016,13 +3017,6 @@ LLVMValueRef LLVMGetFirstParam(LLVMValueRef Fn);
  */
 LLVMValueRef LLVMGetLastParam(LLVMValueRef Fn);
 
-/**
- * Obtain function type.
- *
- * @see llvm::Function::getFunctionType()
- */
-LLVMTypeRef LLVMGetFunctionType(LLVMValueRef Fn);
-
 /**
  * Obtain the next parameter to a function.
  *

llvm/lib/IR/Core.cpp

@@ -2658,10 +2658,6 @@ void LLVMSetParamAlignment(LLVMValueRef Arg, unsigned align) {
   A->addAttr(Attribute::getWithAlignment(A->getContext(), Align(align)));
 }
 
-LLVMTypeRef LLVMGetFunctionType(LLVMValueRef Fn) {
-  return wrap(unwrap<Function>(Fn)->getFunctionType());
-}
-
 /*--.. Operations on ifuncs ................................................--*/
 
 LLVMValueRef LLVMAddGlobalIFunc(LLVMModuleRef M,