Disable warnings about deprecated functions for stable branch
Disable warnings about deprecated functions for stable branch

Since this is a stable branch, we're unlikely to fix uses of
deprecated functions, so we shouldn't warn about them.

To be reverted in the 0.21 branch.

Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib