Remove deprecated option --render-expired-frames

This option did nothing since it was deprecated. Totally remove it.

app/src/cli.c

@@ -18,8 +18,7 @@
 #define STR(x) STR_IMPL_(x)
 
 enum {
-    OPT_RENDER_EXPIRED_FRAMES = 1000,
-    OPT_BIT_RATE,
+    OPT_BIT_RATE = 1000,
     OPT_WINDOW_TITLE,
     OPT_PUSH_TARGET,
     OPT_ALWAYS_ON_TOP,
@@ -471,11 +470,6 @@ static const struct sc_option options[] = {
                 "\"opengles2\", \"opengles\", \"metal\" and \"software\".\n"
                 "<https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER>",
     },
-    {
-        // deprecated
-        .longopt_id = OPT_RENDER_EXPIRED_FRAMES,
-        .longopt = "render-expired-frames",
-    },
     {
         .longopt_id = OPT_REQUIRE_AUDIO,
         .longopt = "require-audio",
@@ -1660,10 +1654,6 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case 'w':
                 opts->stay_awake = true;
                 break;
-            case OPT_RENDER_EXPIRED_FRAMES:
-                LOGW("Option --render-expired-frames has been removed. This "
-                     "flag has been ignored.");
-                break;
             case OPT_WINDOW_TITLE:
                 opts->window_title = optarg;
                 break;