Remove flush_monomorphic_ics flag.

src/heap/heap.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_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 
 #include "src/allocation.h"
@@ skipping 1332 matching lines @@
   void RememberUnmappedPage(Address page, bool compacted);
 
   // Global inline caching age: it is incremented on some GCs after context
   // disposal. We use it to flush inline caches.
   int global_ic_age() { return global_ic_age_; }
 
   void AgeInlineCaches() {
     global_ic_age_ = (global_ic_age_ + 1) & SharedFunctionInfo::ICAgeBits::kMax;
   }
 
-  bool flush_monomorphic_ics() { return flush_monomorphic_ics_; }
-
   int64_t amount_of_external_allocated_memory() {
     return amount_of_external_allocated_memory_;
   }
 
   void DeoptMarkedAllocationSites();
 
   bool MaximumSizeScavenge() { return maximum_size_scavenges_ > 0; }
 
   bool DeoptMaybeTenuredAllocationSites() {
     return new_space_.IsAtMaximumCapacity() && maximum_size_scavenges_ == 0;
@@ skipping 166 matching lines @@
   // For keeping track on when to flush RegExp code.
   int sweep_generation_;
 
   int always_allocate_scope_depth_;
 
   // For keeping track of context disposals.
   int contexts_disposed_;
 
   int global_ic_age_;
 
-  bool flush_monomorphic_ics_;
-
   int scan_on_scavenge_pages_;
 
   NewSpace new_space_;
   OldSpace* old_pointer_space_;
   OldSpace* old_data_space_;
   OldSpace* code_space_;
   MapSpace* map_space_;
   CellSpace* cell_space_;
   PropertyCellSpace* property_cell_space_;
   LargeObjectSpace* lo_space_;
@@ skipping 1035 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_