Removed the construction of new OpalMediaFormat instances from FS codecs, need for H.323 capabilities makes this impossible, OPAL must know about the codec a priori (and how to make H.323 capability from it) or it cannot be used.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11534 d0543943-73ff-0310-b7d9-9358b9ac24b2