Removed a print statement. Getting class meta data from a pickle

can fail if the pickle has been transformed and a calling storage
doesn't account for that.  Printing is certainly not the right way to
deal with the problem.

Also cleaned up some whitespace.

src/ZODB/utils.py

@@ -206,7 +206,6 @@ def get_pickle_metadata(data):
     try:
         class_info = u.load()
     except Exception, err:
-        print "Error", err
         return '', ''
     if isinstance(class_info, tuple):
         if isinstance(class_info[0], tuple):