Drop options=(debug)/options=('debug') from trunk

devtools 20230105-1 enables the debug option by default.

A follow-up commit will remove debug from alongside other options.

PKGBUILD

@@ -10,7 +10,6 @@ license=(GPL2)
 depends=(glib2 bash systemd)
 makedepends=(gtk-doc meson git help2man gobject-introspection bash-completion)
 provides=(libmbim-glib.so)
-options=(debug)
 _commit=c94b858d1c5a98238adf0e6006e453c984c8e5d5  # tags/1.28.2^0
 source=("git+https://gitlab.freedesktop.org/mobile-broadband/libmbim.git#commit=$_commit")
 sha256sums=('SKIP')