revert r25736

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 5515babdcaa5465c22cdb80ebe0bec31c3a63575..7d967c34b878320babb9ad5f8a77c1ecfa50bb7c 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -585,15 +585,6 @@ struct ReuseSpillSlotsPhase {
 };
 
 
-struct CommitAssignmentPhase {
-  static const char* phase_name() { return "commit assignment"; }
-
-  void Run(PipelineData* data, Zone* temp_zone) {
-    data->register_allocator()->CommitAssignment();
-  }
-};
-
-
 struct PopulatePointerMapsPhase {
   static const char* phase_name() { return "populate pointer maps"; }
 
@@ -1045,7 +1036,6 @@ void Pipeline::AllocateRegisters(const RegisterConfiguration* config,
   if (FLAG_turbo_reuse_spill_slots) {
     Run<ReuseSpillSlotsPhase>();
   }
-  Run<CommitAssignmentPhase>();
   Run<PopulatePointerMapsPhase>();
   Run<ConnectRangesPhase>();
   Run<ResolveControlFlowPhase>();