FR: Option to Auto-Delete .torrent files upon download completion

[Concept211]

Create an option in the settings to auto-delete the .torrent file upon completion or when Tribler imports the torrent.

I'm sure I'm not the only one with this issue and is a standard feature with every other bittorrent client. Would be greatly appreciated! 👍

[qstokkink]

I think we can fit this feature into this code:

tribler/src/tribler/core/libtorrent/download_manager/download.py

Lines 624 to 631 in 18535e4

	if state.get_status() == DownloadStatus.SEEDING:
	mode = self.download_manager.config.get("libtorrent/download_defaults/seeding_mode")
	seeding_ratio = self.download_manager.config.get("libtorrent/download_defaults/seeding_ratio")
	seeding_time = self.download_manager.config.get("libtorrent/download_defaults/seeding_time")
	if (mode == "never" or
	(mode == "ratio" and state.get_all_time_ratio() >= seeding_ratio) or
	(mode == "time" and state.get_seeding_time() >= seeding_time)):
	self.stop()

Instead of stopping (self.stop()) after the user-defined seeding ratio has been achieved, we can remove the download (if desired by the user). I think it makes sense to put this setting in the GUI next to these seeding ratio settings, in the Seeding tab.