[gnome-games/sudoku-tube] Remove unused method

[Zhang Sen <zhangsen src gnome org>]

commit 84aac0e1bfab8cc029e6bffb1f9d406cdb49c789
Author: Zhang Sen <zh jesse gmail com>
Date:   Sun Jul 12 21:18:36 2009 +0800

    Remove unused method

 gnome-sudoku/src/lib/gsudoku.py |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/gnome-sudoku/src/lib/gsudoku.py b/gnome-sudoku/src/lib/gsudoku.py
index 919f89c..f50c428 100644
--- a/gnome-sudoku/src/lib/gsudoku.py
+++ b/gnome-sudoku/src/lib/gsudoku.py
@@ -579,8 +579,3 @@ class SudokuModel:
         if not val:
             val = self.grid._get_(x, y)
         self.trackers[tracker].append((x, y, val))
-
-    def remove_tracker (self, x, y, tracker, val = None):
-        if not val:
-            val = self.grid._get_(x, y)
-        self.trackers[tracker].remove((x, y, val))