main/postmarketos-base-ui: remove default-camera subpkg

UI camera apps are in better shape, they will show a nice error to users if no camera device is found and increasingly more devices are getting working cameras now... so imho it doesn't make sense to have this subpackage anymore.

cc @rmader

main/postmarketos-base-ui-gnome-mobile/APKBUILD

 pkgname=postmarketos-base-ui-gnome-mobile
 pkgver=1
-pkgrel=0
+pkgrel=1
 pkgdesc="Meta package for shared configuration for GNOME Mobile and Phosh UIs"
 url="https://postmarketos.org"
 arch="noarch"
@@ -17,7 +17,6 @@ _pmb_recommends="
 	calls
 	chatty
 	mobile-config-firefox
-	postmarketos-default-camera
 	postmarketos-tweaks
 	postmarketos-welcome
 	postprocessd