Remove strong mode support from rest argument creation.

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index f3f00e1f6e2b5f4d7581307e11d4f7b6f57ccb2f..f88d3bd5b4455c544af3bdb777e0b036ed61c1f0 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -1970,7 +1970,6 @@ void RestParamAccessStub::GenerateNew(MacroAssembler* masm) {
   // a2 : number of parameters (tagged)
   // a3 : parameters pointer
   // a1 : rest parameter index (tagged)
-  // a0 : language mode (tagged)
   // Check if the calling frame is an arguments adaptor frame.
 
   Label runtime;
@@ -1987,7 +1986,7 @@ void RestParamAccessStub::GenerateNew(MacroAssembler* masm) {
 
   // Do the runtime call to allocate the arguments object.
   __ bind(&runtime);
-  __ Push(a2, a3, a1, a0);
+  __ Push(a2, a3, a1);
   __ TailCallRuntime(Runtime::kNewRestParam);
 }