Cleanup ConsStringIteratorOp.

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index 2e7f45971ec3e8330540488d88279a93bd7628d1..55d139c57a02ae8b7ce9bc48de8790ed345d52d6 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -40,7 +40,6 @@ class CodeRange;
 class CodeStubDescriptor;
 class CodeTracer;
 class CompilationCache;
-class ConsStringIteratorOp;
 class ContextSlotCache;
 class Counters;
 class CpuFeatures;
@@ -922,8 +921,6 @@ class Isolate {
     return inner_pointer_to_code_cache_;
   }
 
-  ConsStringIteratorOp* write_iterator() { return write_iterator_; }
-
   GlobalHandles* global_handles() { return global_handles_; }
 
   EternalHandles* eternal_handles() { return eternal_handles_; }
@@ -940,18 +937,6 @@ class Isolate {
     return &jsregexp_canonrange_;
   }
 
-  ConsStringIteratorOp* objects_string_compare_iterator_a() {
-    return &objects_string_compare_iterator_a_;
-  }
-
-  ConsStringIteratorOp* objects_string_compare_iterator_b() {
-    return &objects_string_compare_iterator_b_;
-  }
-
-  StaticResource<ConsStringIteratorOp>* objects_string_iterator() {
-    return &objects_string_iterator_;
-  }
-
   RuntimeState* runtime_state() { return &runtime_state_; }
 
   Builtins* builtins() { return &builtins_; }
@@ -1251,7 +1236,6 @@ class Isolate {
   UnicodeCache* unicode_cache_;
   Zone runtime_zone_;
   InnerPointerToCodeCache* inner_pointer_to_code_cache_;
-  ConsStringIteratorOp* write_iterator_;
   GlobalHandles* global_handles_;
   EternalHandles* eternal_handles_;
   ThreadManager* thread_manager_;
@@ -1261,9 +1245,6 @@ class Isolate {
   StringTracker* string_tracker_;
   unibrow::Mapping<unibrow::Ecma262UnCanonicalize> jsregexp_uncanonicalize_;
   unibrow::Mapping<unibrow::CanonicalizationRange> jsregexp_canonrange_;
-  ConsStringIteratorOp objects_string_compare_iterator_a_;
-  ConsStringIteratorOp objects_string_compare_iterator_b_;
-  StaticResource<ConsStringIteratorOp> objects_string_iterator_;
   unibrow::Mapping<unibrow::Ecma262Canonicalize>
       regexp_macro_assembler_canonicalize_;
   RegExpStack* regexp_stack_;