gitlab-ci: Remove autotools from corss-compilation containers

We only use meson there.

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>