Do not add extra argument for new.target

src/mips64/code-stubs-mips64.cc

Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index 8c539b40f829d3a9d564b38e3c47b5029d675082..b358b95c328cca8a1499349ac225da4aa86d6d76 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -1623,7 +1623,6 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
 
 
 void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
-  CHECK(!has_new_target());
   // The displacement is the offset of the last parameter (if any)
   // relative to the frame pointer.
   const int kDisplacement =
@@ -1683,8 +1682,6 @@ void ArgumentsAccessStub::GenerateNewSloppySlow(MacroAssembler* masm) {
   // sp[4] : receiver displacement
   // sp[8] : function
 
-  CHECK(!has_new_target());
-
   // Check if the calling frame is an arguments adaptor frame.
   Label runtime;
   __ ld(a3, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
@@ -1716,8 +1713,6 @@ void ArgumentsAccessStub::GenerateNewSloppyFast(MacroAssembler* masm) {
   //  a6 : allocated object (tagged)
   //  t1 : mapped parameter count (tagged)
 
-  CHECK(!has_new_target());
-
   __ ld(a1, MemOperand(sp, 0 * kPointerSize));
   // a1 = parameter count (tagged)
 
@@ -1974,15 +1969,6 @@ void ArgumentsAccessStub::GenerateNewStrict(MacroAssembler* masm) {
   // Patch the arguments.length and the parameters pointer.
   __ bind(&adaptor_frame);
   __ ld(a1, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset));
-  if (has_new_target()) {
-    Label skip_decrement;
-    __ Branch(&skip_decrement, eq, a1, Operand(Smi::FromInt(0)));
-    // Subtract 1 from smi-tagged arguments count.
-    __ SmiUntag(a1);
-    __ Daddu(a1, a1, Operand(-1));
-    __ SmiTag(a1);
-    __ bind(&skip_decrement);
-  }
   __ sd(a1, MemOperand(sp, 0));
   __ SmiScale(at, a1, kPointerSizeLog2);