revert changes to sanitizer_allocator

Author: davidmrdavid

compiler-rt/lib/sanitizer_common/sanitizer_allocator.cpp

@@ -85,12 +85,8 @@ static void NORETURN ReportInternalAllocatorOutOfMemory(uptr requested_size) {
 
 void *InternalAlloc(uptr size, InternalAllocatorCache *cache, uptr alignment) {
   void *p = RawInternalAlloc(size, cache, alignment);
-  if (UNLIKELY(!p)) {
-    if (AllocatorMayReturnNull()) {
-      return nullptr;
-    }
+  if (UNLIKELY(!p))
     ReportInternalAllocatorOutOfMemory(size);
-  }
   return p;
 }