Remove crash-hunting instrumentation that has served its purpose.

src/ic/ppc/ic-ppc.cc

 // 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.
 
 #if V8_TARGET_ARCH_PPC
 
 #include "src/codegen.h"
 #include "src/ic/ic.h"
 #include "src/ic/ic-compiler.h"
 #include "src/ic/stub-cache.h"
@@ skipping 292 matching lines @@
 static void LoadIC_PushArgs(MacroAssembler* masm) {
   Register receiver = LoadDescriptor::ReceiverRegister();
   Register name = LoadDescriptor::NameRegister();
   Register slot = LoadDescriptor::SlotRegister();
   Register vector = LoadWithVectorDescriptor::VectorRegister();
 
   __ Push(receiver, name, slot, vector);
 }
 
 
-void LoadIC::GenerateMiss(MacroAssembler* masm, int stress) {
+void LoadIC::GenerateMiss(MacroAssembler* masm) {
   // The return address is in lr.
   Isolate* isolate = masm->isolate();
 
   DCHECK(!AreAliased(r7, r8, LoadWithVectorDescriptor::SlotRegister(),
                      LoadWithVectorDescriptor::VectorRegister()));
   __ IncrementCounter(isolate->counters()->load_miss(), 1, r7, r8);
 
   LoadIC_PushArgs(masm);
 
   // Perform tail call to the entry.
@@ skipping 597 matching lines @@
     patcher.EmitCondition(ne);
   } else {
     DCHECK(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC