[intrinsic] Drop the %_ValueOf intrinsic.

src/full-codegen/mips/full-codegen-mips.cc

Index: src/full-codegen/mips/full-codegen-mips.cc
diff --git a/src/full-codegen/mips/full-codegen-mips.cc b/src/full-codegen/mips/full-codegen-mips.cc
index 45d081100957c89131d74d62be280a93cd047f33..acb1e0fe8d726b2ee40b75590ffddbb13cf1c808 100644
--- a/src/full-codegen/mips/full-codegen-mips.cc
+++ b/src/full-codegen/mips/full-codegen-mips.cc
@@ -2860,26 +2860,6 @@ void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));  // Load the object.
-
-  Label done;
-  // If the object is a smi return the object.
-  __ JumpIfSmi(v0, &done);
-  // If the object is not a value type, return the object.
-  __ GetObjectType(v0, a1, a1);
-  __ Branch(&done, ne, a1, Operand(JS_VALUE_TYPE));
-
-  __ lw(v0, FieldMemOperand(v0, JSValue::kValueOffset));
-
-  __ bind(&done);
-  context()->Plug(v0);
-}
-
-
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);