Initialize the unaligned memory to avoid complaints about uninitialied.

Location new_alloc in method SimpleMemoryArena::Commit.

PiperOrigin-RevId: 426028553
Change-Id: If9d90cb1ab6423df734df217cbf80030528f8ddb

Author: tensorflower-gardener

tensorflow/lite/simple_memory_arena.cc

@@ -114,7 +114,7 @@ TfLiteStatus SimpleMemoryArena::Deallocate(
 TfLiteStatus SimpleMemoryArena::Commit(TfLiteContext* context) {
   size_t required_size = RequiredBufferSize();
   if (required_size > underlying_buffer_size_) {
-    char* new_alloc = new char[required_size]();
+    char* new_alloc = new char[required_size];
     char* new_underlying_buffer_aligned_ptr = reinterpret_cast<char*>(
         AlignTo(arena_alignment_, reinterpret_cast<intptr_t>(new_alloc)));