Remove unused V8.CodegenFractionCrankshaft counter.

src/heap/heap.cc

 // Copyright 2012 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.
 
 #include "src/heap/heap.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/ast/scopeinfo.h"
 #include "src/base/bits.h"
@@ skipping 659 matching lines @@
   UpdateMaximumCommitted();
 
   isolate_->counters()->alive_after_last_gc()->Set(
       static_cast<int>(SizeOfObjects()));
 
   isolate_->counters()->string_table_capacity()->Set(
       string_table()->Capacity());
   isolate_->counters()->number_of_symbols()->Set(
       string_table()->NumberOfElements());
 
-  if (full_codegen_bytes_generated_ + crankshaft_codegen_bytes_generated_ > 0) {
-    isolate_->counters()->codegen_fraction_crankshaft()->AddSample(
-        static_cast<int>((crankshaft_codegen_bytes_generated_ * 100.0) /
-                         (crankshaft_codegen_bytes_generated_ +
-                          full_codegen_bytes_generated_)));
-  }
-
   if (CommittedMemory() > 0) {
     isolate_->counters()->external_fragmentation_total()->AddSample(
         static_cast<int>(100 - (SizeOfObjects() * 100.0) / CommittedMemory()));
 
     isolate_->counters()->heap_fraction_new_space()->AddSample(static_cast<int>(
         (new_space()->CommittedMemory() * 100.0) / CommittedMemory()));
     isolate_->counters()->heap_fraction_old_space()->AddSample(static_cast<int>(
         (old_space()->CommittedMemory() * 100.0) / CommittedMemory()));
     isolate_->counters()->heap_fraction_code_space()->AddSample(
         static_cast<int>((code_space()->CommittedMemory() * 100.0) /
@@ skipping 5750 matching lines @@
 }
 
 
 // static
 int Heap::GetStaticVisitorIdForMap(Map* map) {
   return StaticVisitorBase::GetVisitorId(map);
 }
 
 }  // namespace internal
 }  // namespace v8