[debugger] Removed unused GetStepInPositions method

src/debug/debug.h

Index: src/debug/debug.h
diff --git a/src/debug/debug.h b/src/debug/debug.h
index eff9f916ff4d272136b43a08d1aa7f74802634ab..600bc1a605bd6349f20faa983b473050ab5a3d9e 100644
--- a/src/debug/debug.h
+++ b/src/debug/debug.h
@@ -70,10 +70,6 @@ class BreakLocation {
   static BreakLocation FromFrame(Handle<DebugInfo> debug_info,
                                  JavaScriptFrame* frame);
 
-  static void FromCodeOffsetSameStatement(Handle<DebugInfo> debug_info,
-                                          int offset,
-                                          List<BreakLocation>* result_out);
-
   static void AllForStatementPosition(Handle<DebugInfo> debug_info,
                                       int statement_position,
                                       List<BreakLocation>* result_out);
@@ -460,9 +456,6 @@ class Debug {
   void ClearStepOut();
   void EnableStepIn();
 
-  void GetStepinPositions(JavaScriptFrame* frame, StackFrame::Id frame_id,
-                          List<int>* results_out);
-
   bool PrepareFunctionForBreakPoints(Handle<SharedFunctionInfo> shared);
 
   // Returns whether the operation succeeded. Compilation can only be triggered