Both drivers shut down all crtc beforehand already, which will shut up
any pending vblank (the only thing vblank_cleanup really does is
disable the disable timer). Hence we don't need this here and can
remove it.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170621082850.13224-2-daniel.vetter@ffwll.ch
 {
        unsigned i, j;
 
-       drm_vblank_cleanup(adev->ddev);
        if (adev->irq.installed) {
                drm_irq_uninstall(adev->ddev);
                adev->irq.installed = false;
 
  */
 void radeon_irq_kms_fini(struct radeon_device *rdev)
 {
-       drm_vblank_cleanup(rdev->ddev);
        if (rdev->irq.installed) {
                drm_irq_uninstall(rdev->ddev);
                rdev->irq.installed = false;