Revert "accel/qaic: Add mhi_qaic_cntl"

This reverts commit 566fc96.

This exposes a userspace API that is still under debate.  Revert the
change before the uAPI gets exposed to avoid making a mistake.  QAIC is
otherwise still functional.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1681307864-3782-1-git-send-email-quic_jhugo@quicinc.com

Author: quic-jhugo

drivers/accel/qaic/Makefile

@@ -7,7 +7,6 @@ obj-$(CONFIG_DRM_ACCEL_QAIC)	:= qaic.o
 
 qaic-y := \
 	mhi_controller.o \
-	mhi_qaic_ctrl.o \
 	qaic_control.o \
 	qaic_data.o \
 	qaic_drv.o