media: imx7-media-csi: drop unused module alias

media: imx7-media-csi: drop unused module alias

The driver has never supported anything but OF probing so drop the
unused platform module alias.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Rui Miguel Silva <rui.silva@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patch.msgid.link/20251017060051.8204-2-johan@kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>