Remove obsolete HObjectLiteral instruction.

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 28309e2df9e163ee85273154a9385d61a3222cde..9381f4d0c68d2a6c1f7338026f6980beb4b8353e 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.cc
@@ -2278,11 +2278,6 @@ LInstruction* LChunkBuilder::DoArrayLiteral(HArrayLiteral* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoObjectLiteral(HObjectLiteral* instr) {
-  return MarkAsCall(DefineFixed(new(zone()) LObjectLiteral, v0), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoRegExpLiteral(HRegExpLiteral* instr) {
   return MarkAsCall(DefineFixed(new(zone()) LRegExpLiteral, v0), instr);
 }