drm/panel: simple: Remove useless drm_mode_set_name()

drm_display_mode_from_videomode() already calls drm_mode_set_name() on
the provided mode.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[treding@nvidia.com: slightly reword commit message]
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/drm/panel/panel-simple.c

@@ -123,8 +123,6 @@ static int panel_simple_get_fixed_modes(struct panel_simple *panel)
 		if (panel->desc->num_modes == 1)
 			mode->type |= DRM_MODE_TYPE_PREFERRED;
 
-		drm_mode_set_name(mode);
-
 		drm_mode_probed_add(connector, mode);
 		num++;
 	}