Revert "drm/vc4: hdmi: Make sure the device is powered with CEC"

Revert "drm/vc4: hdmi: Make sure the device is powered with CEC"

This reverts commit 3a63b718200be5b1997f6eb28e5e688ec58ec41b which is
commit 20b0dfa86bef0e80b41b0e5ac38b92f23b6f27f9 upstream.

It wasn't applied correctly, something went wrong with an attempt to fix
it up again, so just revert the whole thing to be back at a clean state.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220205171238.GA3073350@roeck-us.net
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Link: https://lore.kernel.org/r/Yf5lNIJnvhP4ajam@kroah.com
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Michael Stapelberg <michael+drm@stapelberg.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>