VM: Remove dead code from flow graph optimizer.

runtime/vm/flow_graph_compiler.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
@@ skipping 37 matching lines @@
 DEFINE_FLAG(bool, use_megamorphic_stub, true, "Out of line megamorphic lookup");
 
 DECLARE_FLAG(bool, background_compilation);
 DECLARE_FLAG(bool, code_comments);
 DECLARE_FLAG(bool, collect_dynamic_function_names);
 DECLARE_FLAG(bool, deoptimize_alot);
 DECLARE_FLAG(int, deoptimize_every);
 DECLARE_FLAG(charp, deoptimize_filter);
 DECLARE_FLAG(bool, emit_edge_counters);
 DECLARE_FLAG(bool, fields_may_be_reset);
-DECLARE_FLAG(bool, guess_icdata_cid);
 DECLARE_FLAG(bool, ic_range_profiling);
 DECLARE_FLAG(bool, intrinsify);
 DECLARE_FLAG(bool, load_deferred_eagerly);
 DECLARE_FLAG(int, optimization_counter_threshold);
 DECLARE_FLAG(bool, propagate_ic_data);
 DECLARE_FLAG(int, regexp_optimization_counter_threshold);
 DECLARE_FLAG(int, reoptimization_counter_threshold);
 DECLARE_FLAG(int, stacktrace_every);
 DECLARE_FLAG(charp, stacktrace_filter);
 DECLARE_FLAG(bool, use_field_guards);
@@ skipping 1815 matching lines @@
 
 
 void FlowGraphCompiler::FrameStateClear() {
   ASSERT(!is_optimizing());
   frame_state_.TruncateTo(0);
 }
 #endif
 
 
 }  // namespace dart