Remove HLoadElements instruction and replace with use of more general HLoadNamedField.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index d346a29b0b94d254ec6a7575417e9c4d891d741f..cead2901d2ca1d46d12874cfff70bbde29545e96 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2029,12 +2029,6 @@ LInstruction* LChunkBuilder::DoLoadFunctionPrototype(
 }
 
 
-LInstruction* LChunkBuilder::DoLoadElements(HLoadElements* instr) {
-  LOperand* input = UseRegisterAtStart(instr->value());
-  return DefineAsRegister(new(zone()) LLoadElements(input));
-}
-
-
 LInstruction* LChunkBuilder::DoLoadExternalArrayPointer(
     HLoadExternalArrayPointer* instr) {
   LOperand* input = UseRegisterAtStart(instr->value());