Remove unused V8.CodegenFractionCrankshaft counter.

src/counters.h

 // 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.
 
 #ifndef V8_COUNTERS_H_
 #define V8_COUNTERS_H_
 
 #include "include/v8.h"
 #include "src/allocation.h"
 #include "src/base/platform/elapsed-timer.h"
@@ skipping 866 matching lines @@
   HT(wasm_decode_function_time, V8.WasmDecodeFunctionMicroSeconds, 1000000,    \
      MICROSECOND)                                                              \
   HT(wasm_compile_module_time, V8.WasmCompileModuleMicroSeconds, 1000000,      \
      MICROSECOND)                                                              \
   HT(wasm_compile_function_time, V8.WasmCompileFunctionMicroSeconds, 1000000,  \
      MICROSECOND)
 
 #define AGGREGATABLE_HISTOGRAM_TIMER_LIST(AHT) \
   AHT(compile_lazy, V8.CompileLazyMicroSeconds)
 
-
 #define HISTOGRAM_PERCENTAGE_LIST(HP)                                          \
   /* Heap fragmentation. */                                                    \
   HP(external_fragmentation_total, V8.MemoryExternalFragmentationTotal)        \
   HP(external_fragmentation_old_space, V8.MemoryExternalFragmentationOldSpace) \
   HP(external_fragmentation_code_space,                                        \
      V8.MemoryExternalFragmentationCodeSpace)                                  \
   HP(external_fragmentation_map_space, V8.MemoryExternalFragmentationMapSpace) \
   HP(external_fragmentation_lo_space, V8.MemoryExternalFragmentationLoSpace)   \
   /* Percentages of heap committed to each space. */                           \
   HP(heap_fraction_new_space, V8.MemoryHeapFractionNewSpace)                   \
   HP(heap_fraction_old_space, V8.MemoryHeapFractionOldSpace)                   \
   HP(heap_fraction_code_space, V8.MemoryHeapFractionCodeSpace)                 \
   HP(heap_fraction_map_space, V8.MemoryHeapFractionMapSpace)                   \
-  HP(heap_fraction_lo_space, V8.MemoryHeapFractionLoSpace)                     \
-  /* Percentage of crankshafted codegen. */                                    \
-  HP(codegen_fraction_crankshaft, V8.CodegenFractionCrankshaft)
-
+  HP(heap_fraction_lo_space, V8.MemoryHeapFractionLoSpace)
 
 #define HISTOGRAM_LEGACY_MEMORY_LIST(HM)                                      \
   HM(heap_sample_total_committed, V8.MemoryHeapSampleTotalCommitted)          \
   HM(heap_sample_total_used, V8.MemoryHeapSampleTotalUsed)                    \
   HM(heap_sample_map_space_committed, V8.MemoryHeapSampleMapSpaceCommitted)   \
   HM(heap_sample_code_space_committed, V8.MemoryHeapSampleCodeSpaceCommitted) \
   HM(heap_sample_maximum_committed, V8.MemoryHeapSampleMaximumCommitted)
 
 #define HISTOGRAM_MEMORY_LIST(HM)                                              \
   HM(memory_heap_committed, V8.MemoryHeapCommitted)                            \
@@ skipping 322 matching lines @@
 
   explicit Counters(Isolate* isolate);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Counters);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COUNTERS_H_