drm/msm: remove explicit devfreq status reset

It is redundant since commit 7c0ffcd4

 ("drm/msm/gpu: Respect PM QoS
constraints") because dev_pm_qos_update_request triggers get_dev_status.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20220416003314.59211-1-olvaffe@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>