transmitter-output.cfg.in: Remove the file

transmitter-output.cfg.in: Remove the file

We no longer have the transmitter plug-in so remove the config file and
the references from weston-ini-conf.bb

Change-Id: I982dd2cda36166852f36c7edd9371d80a4d8c2bf
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/29536
Tested-by: Jenkins Job builder account
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>