Remove redundant IsAligned function

{IsAligned} is defined twice with exactly the same signature and
implementation: once in base/macros.h, once in utils.h.

This CL removes the definition from utils.h.
Note that utils.h includes macros.h, so no further changes are needed.

R=mlippautz@chromium.org

Bug: v8:8238
Change-Id: I589b00c01619d054ff39c717f728a2351b6c32ea
Reviewed-on: https://chromium-review.googlesource.com/c/1280206
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56632}

src/utils.h

@@ -161,12 +161,6 @@ int HandleObjectPointerCompare(const Handle<T>* a, const Handle<T>* b) {
   return Compare<T*>(*(*a), *(*b));
 }
 
-
-template <typename T, typename U>
-inline bool IsAligned(T value, U alignment) {
-  return (value & (alignment - 1)) == 0;
-}
-
 // Returns the maximum of the two parameters.
 template <typename T>
 constexpr T Max(T a, T b) {