Make some functions that are hit during renderer startup available for inlining

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 934a69866b7daf946e843d8674505285c0f24730..91c5ca6406e8c3aca774ac261ed16318cbb7846b 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -4028,11 +4028,6 @@ AllocationResult Heap::AllocateFixedArrayWithFiller(int length,
 }
 
 
-AllocationResult Heap::AllocateFixedArray(int length, PretenureFlag pretenure) {
-  return AllocateFixedArrayWithFiller(length, pretenure, undefined_value());
-}
-
-
 AllocationResult Heap::AllocateUninitializedFixedArray(int length) {
   if (length == 0) return empty_fixed_array();