Revert "Initial shot at deoptimizing JSCallFunction in Turbofan."

src/compiler/linkage.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_LINKAGE_H_
 #define V8_COMPILER_LINKAGE_H_
 
 #include "src/v8.h"
 
 #include "src/code-stubs.h"
@@ skipping 129 matching lines @@
   CallDescriptor* GetRuntimeCallDescriptor(
       Runtime::FunctionId function, int parameter_count,
       Operator::Property properties,
       CallDescriptor::DeoptimizationSupport can_deoptimize =
           CallDescriptor::kCannotDeoptimize);
   static CallDescriptor* GetRuntimeCallDescriptor(
       Runtime::FunctionId function, int parameter_count,
       Operator::Property properties,
       CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone);
 
-  CallDescriptor* GetStubCallDescriptor(
-      CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count = 0,
-      CallDescriptor::DeoptimizationSupport can_deoptimize =
-          CallDescriptor::kCannotDeoptimize);
-  static CallDescriptor* GetStubCallDescriptor(
-      CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count,
-      CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone);
+  CallDescriptor* GetStubCallDescriptor(CodeStubInterfaceDescriptor* descriptor,
+                                        int stack_parameter_count = 0);
 
   // Creates a call descriptor for simplified C calls that is appropriate
   // for the host platform. This simplified calling convention only supports
   // integers and pointers of one word size each, i.e. no floating point,
   // structs, pointers to members, etc.
   static CallDescriptor* GetSimplifiedCDescriptor(
       Zone* zone, int num_params, MachineRepresentation return_type,
       const MachineRepresentation* param_types);
 
   // Get the location of an (incoming) parameter to this function.
@@ skipping 17 matching lines @@
 
  private:
   CompilationInfo* info_;
   CallDescriptor* incoming_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_LINKAGE_H_