video: Drop references to CONFIG_VIDEO et al

Drop the Kconfigs which are not used and all references to them. In
particular, this drops CONFIG_VIDEO to avoid confusion and allow us to
eventually rename CONFIG_DM_VIDEO to CONFIG_VIDEO.

Also drop the prototype for video_get_info_str() which is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Jason Liu <jason.hui.liu@nxp.com>
diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c
index c56b3f4..37cd8a5 100644
--- a/cmd/bdinfo.c
+++ b/cmd/bdinfo.c
@@ -117,7 +117,7 @@
 	bdinfo_print_num_l("fdt_size", (ulong)gd->fdt_size);
 	if (IS_ENABLED(CONFIG_DM_VIDEO))
 		show_video_info();
-#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
+#if defined(CONFIG_LCD)
 	bdinfo_print_num_l("FB base  ", gd->fb_base);
 #endif
 #if CONFIG_IS_ENABLED(MULTI_DTB_FIT)