Remove @author tags from copyright statements

We have git to track the authorship of files. It is not necessary to use
the @author tags in the copyright statements.

Change-Id: Idf862b8d5e92a7e0f9697d4d1a95a4c225d18dde

tools/generatepot

@@ -1,9 +1,5 @@
 #!/usr/bin/env python
-'''
-Created on 2012-7-3
 
-@author: daisy
-'''
 import os, sys
 from xml2po import Main
 from xml2po.modes.docbook import docbookXmlMode