[Sheriff] Revert "MIPS: Ensure double aligned allocations through runtime routines."

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 1001fe21f54b8587359f81a7e839d919c003b230..28506dde49a11cd6aa9d6c91ab5ce21e22301f64 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -9786,7 +9786,6 @@ static MaybeObject* Allocate(Isolate* isolate,
                              bool double_align,
                              AllocationSpace space) {
   Heap* heap = isolate->heap();
-  if (double_align) size += kPointerSize;
   RUNTIME_ASSERT(IsAligned(size, kPointerSize));
   RUNTIME_ASSERT(size > 0);
   RUNTIME_ASSERT(size <= heap->MaxRegularSpaceAllocationSize());
@@ -9798,9 +9797,6 @@ static MaybeObject* Allocate(Isolate* isolate,
   MemoryChunk* chunk = MemoryChunk::FromAddress(allocation->address());
   ASSERT(chunk->owner()->identity() == space);
 #endif
-  if (double_align) {
-    allocation = heap->EnsureDoubleAligned(allocation, size);
-  }
   heap->CreateFillerObjectAt(allocation->address(), size);
   return allocation;
 }