actually unmute the microphone when restarting the call
actually unmute the microphone when restarting the call

That's what this code was always meant to do but some idiot named Guillaume
changed it and introduced this regression in
74d098cd8894f72321237e120267a5ec3f188b3f when using the
audio-input-microphone-muted-symbolic icon.

https://bugzilla.gnome.org/show_bug.cgi?id=684531

Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets