Revert "GMEPG add ServiceEvent support."

This reverts commit 525d1d9cdd6332355f7a970f13635d6c9614b0e8.
As it seems to break some plugins
See: http://openpli.git.sourceforge.net/git/gitweb.cgi?p=openpli/enigma2;a=commit;h=f9007432d542b544f93a5ce117bd1c8b6316663d