sync post with code

laurentluce · laurentluce · commit 6d2bcde9b1ce · 2012-07-11T00:31:09.000-04:00
diff --git a/algorithms/binary_tree.py b/algorithms/binary_tree.py
@@ -61,11 +61,10 @@ def delete(self, data):
             if children_count == 0:
                 # if node has no children, just remove it
                 # check if it is not the root node
-                if parent:
-                    if parent.left is node:
-                        parent.left = None
-                    else:
-                        parent.right = None
+                if parent.left is node:
+                    parent.left = None
+                else:
+                    parent.right = None
                 del node
             elif children_count == 1:
                 # if node has 1 child
