debian: don't depend on non-free codecs for meta-vanilla

debian/bootstrap.sh

@@ -300,10 +300,8 @@ Depends: \${misc:Depends}, freeswitch (= \${binary:Version}),
  freeswitch-mod-g723-1 (= \${binary:Version}),
  freeswitch-mod-g729 (= \${binary:Version}),
  freeswitch-mod-amr (= \${binary:Version}),
- freeswitch-mod-ilbc (= \${binary:Version}),
  freeswitch-mod-speex (= \${binary:Version}),
  freeswitch-mod-h26x (= \${binary:Version}),
- freeswitch-mod-siren (= \${binary:Version}),
  freeswitch-mod-sndfile (= \${binary:Version}),
  freeswitch-mod-native-file (= \${binary:Version}),
  freeswitch-mod-local-stream (= \${binary:Version}),