extras: apple: fix copy_plugins de-duplication
The de-duplication was checking whether $plugin was in the PLUGINS array already, but plugins like ts_plugin would match mux_ts_plugin and would not be copied to the final application.
The de-duplication was checking whether $plugin was in the PLUGINS array already, but plugins like ts_plugin would match mux_ts_plugin and would not be copied to the final application.
VideoLAN code repository instance