4453 A partial revert of the work done to accomodate Android Background Channels (cla: yes, p: android_intent, p: camera, p: url_launcher, p: quick_actions, platform-android)

p: connectivity - 6 pull request(s)

3216 [multiple] Java 8 target for all plugins with -Werror compiler arg (cla: yes, waiting for tree to go green, p: android_alarm_manager, p: android_intent, p: camera, p: path_provider, p: video_player, p: connectivity, platform-android)