Merge pull request #341 from mdaffin/branchiterator-foreach-errors

Add check for ErrIterOver in BranchIterator.ForEach
diff --git a/walk.go b/walk.go
index 60e618d..ab1de61 100644
--- a/walk.go
+++ b/walk.go
@@ -173,10 +173,6 @@
 			return nil
 		}
 		if err != nil {
-			if err.(GitError).Code == ErrIterOver {
-				err = nil
-			}
-
 			return err
 		}