def remove_member_from(self, leaderboard_name, member):
pipeline = self.redis_connection.pipeline()<EOL>pipeline.zrem(leaderboard_name, member)<EOL>pipeline.hdel(self._member_data_key(leaderboard_name), member)<EOL>pipeline.execute()<EOL>
Remove the optional member data for a given member in the named leaderboard.

@param leaderboard_name [String] Name of the leaderboard.
@param member [String] Member name.