Replace custom builtin invocation instructions by a generic version

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index c8d0fdbf086e7522131204b5ada130265ef32f85..56332eeea990c9c5ecaa783715f3a2debf24d55d 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -2431,14 +2431,6 @@ LInstruction* LChunkBuilder::DoFunctionLiteral(HFunctionLiteral* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoDeleteProperty(HDeleteProperty* instr) {
-  LOperand* object = UseFixed(instr->object(), r0);
-  LOperand* key = UseFixed(instr->key(), r1);
-  LDeleteProperty* result = new(zone()) LDeleteProperty(object, key);
-  return MarkAsCall(DefineFixed(result, r0), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoOsrEntry(HOsrEntry* instr) {
   ASSERT(argument_count_ == 0);
   allocator_->MarkAsOsrEntry();
@@ -2611,14 +2603,6 @@ LInstruction* LChunkBuilder::DoLeaveInlined(HLeaveInlined* instr) {
 }
 
 
-LInstruction* LChunkBuilder::DoIn(HIn* instr) {
-  LOperand* key = UseRegisterAtStart(instr->key());
-  LOperand* object = UseRegisterAtStart(instr->object());
-  LIn* result = new(zone()) LIn(key, object);
-  return MarkAsCall(DefineFixed(result, r0), instr);
-}
-
-
 LInstruction* LChunkBuilder::DoForInPrepareMap(HForInPrepareMap* instr) {
   LOperand* object = UseFixed(instr->enumerable(), r0);
   LForInPrepareMap* result = new(zone()) LForInPrepareMap(object);