Remove usages of Heap::NewSpaceStart and its external reference

src/crankshaft/mips64/lithium-codegen-mips64.cc

Index: src/crankshaft/mips64/lithium-codegen-mips64.cc
diff --git a/src/crankshaft/mips64/lithium-codegen-mips64.cc b/src/crankshaft/mips64/lithium-codegen-mips64.cc
index f67eafc9ff6ab4ca5e3bdb35c3fb2d15dbf6b9b2..d14efafd4d6f55c3ff5cd7d33f50ff40bfbb82b8 100644
--- a/src/crankshaft/mips64/lithium-codegen-mips64.cc
+++ b/src/crankshaft/mips64/lithium-codegen-mips64.cc
@@ -4453,8 +4453,7 @@ void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) {
   Register object = ToRegister(instr->object());
   Register temp = ToRegister(instr->temp());
   Label no_memento_found;
-  __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found,
-                                     ne, &no_memento_found);
+  __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found);
   DeoptimizeIf(al, instr, Deoptimizer::kMementoFound);
   __ bind(&no_memento_found);
 }