Remove obsolete instruction HOuterContext.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 95b810f665609d44e6a43aae8b91a82ab2ac6561..8d82836f69b46fc3845561c0ff6eb65ee91d7979 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1127,12 +1127,6 @@ LInstruction* LChunkBuilder::DoContext(HContext* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoOuterContext(HOuterContext* instr) {
-  LOperand* context = UseRegisterAtStart(instr->value());
-  return DefineAsRegister(new(zone()) LOuterContext(context));
-}
-
-
 LInstruction* LChunkBuilder::DoDeclareGlobals(HDeclareGlobals* instr) {
   LOperand* context = UseFixed(instr->context(), esi);
   return MarkAsCall(new(zone()) LDeclareGlobals(context), instr);