[turbofan] Remove dead kArchTailCallJSFunction.

src/compiler/mips/code-generator-mips.cc

Index: src/compiler/mips/code-generator-mips.cc
diff --git a/src/compiler/mips/code-generator-mips.cc b/src/compiler/mips/code-generator-mips.cc
index 12d3e75a05e193f874cc01e6babdebd79559d731..56c35287d39002cdacd29e79d4faeeb6d0457338 100644
--- a/src/compiler/mips/code-generator-mips.cc
+++ b/src/compiler/mips/code-generator-mips.cc
@@ -639,20 +639,16 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       frame_access_state()->SetFrameAccessToDefault();
       break;
     }
-    case kArchTailCallJSFunctionFromJSFunction:
-    case kArchTailCallJSFunction: {
+    case kArchTailCallJSFunctionFromJSFunction: {
       Register func = i.InputRegister(0);
       if (FLAG_debug_code) {
         // Check the function's context matches the context argument.
         __ lw(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset));
         __ Assert(eq, kWrongFunctionContext, cp, Operand(kScratchReg));
       }
-
-      if (arch_opcode == kArchTailCallJSFunctionFromJSFunction) {
-        AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister,
-                                         i.TempRegister(0), i.TempRegister(1),
-                                         i.TempRegister(2));
-      }
+      AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister,
+                                       i.TempRegister(0), i.TempRegister(1),
+                                       i.TempRegister(2));
       __ lw(at, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Jump(at);
       frame_access_state()->ClearSPDelta();