Revert r235219, it's not needed after r235450.

llvm-svn: 235480

llvm/include/llvm/Support/AlignOf.h

@@ -22,11 +22,6 @@ namespace llvm {
 template <typename T>
 struct AlignmentCalcImpl {
   char x;
-#if defined(_MSC_VER)
-// Disables "structure was padded due to __declspec(align())" warnings that are
-// generated by any class using AlignOf<T> with a manually specified alignment.
-#pragma warning(suppress : 4324)
-#endif
   T t;
 private:
   AlignmentCalcImpl() {} // Never instantiate.