The DRM core should take care of disabling all unneeded planes, so there
is no need to do this explicitly.
Signed-off-by: Thierry Reding <treding@nvidia.com>
 static void tegra_crtc_disable(struct drm_crtc *crtc)
 {
        struct tegra_dc *dc = to_tegra_dc(crtc);
-       struct drm_device *drm = crtc->dev;
-       struct drm_plane *plane;
-
-       drm_for_each_legacy_plane(plane, &drm->mode_config.plane_list) {
-               if (plane->crtc == crtc) {
-                       tegra_window_plane_disable(plane);
-                       plane->crtc = NULL;
-
-                       if (plane->fb) {
-                               drm_framebuffer_unreference(plane->fb);
-                               plane->fb = NULL;
-                       }
-               }
-       }
 
        if (!tegra_dc_idle(dc)) {
                tegra_dc_stop(dc);