There is no --disable-ext-mariadb-connector option any longer

Change-Id: If95a9a63e5f02d8b3faf0e563dac20cece9af975
Reviewed-on: https://gerrit.libreoffice.org/68345
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>

distro-configs/LibreOfficeVanillaMacAppStore.conf

 --disable-ext-ct2n
---disable-ext-mariadb-connector
 --disable-ext-numbertext
 --disable-firebird-sdbc
 --disable-lotuswordpro