Don't update the plugin info in the model twice
Don't update the plugin info in the model twice

It was already being updated when the plugin was
{un,}loaded by the engine because it connects to the signals.

GNOME/libpeas,gregier/libpeas,Distrotech/libpeas,Distrotech/libpeas,chergert/libpeas,chergert/libpeas,gregier/libpeas,Distrotech/libpeas,GNOME/libpeas,gregier/libpeas,gregier/libpeas,chergert/libpeas