remove various commands that remove old modules since they have been there a

sufficient amount of time.  Even if they happen to be still present, the main
Makefile will spit out a huge warning telling the user that modules not
installed by that run of "make install" are present in the modules directory.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@35605 65c4cc65-6c06-0410-ace0-fbb531ad65f3