quickest way to delete local file loaded into audacity

I need to listen to many audio files and delete (or trim) many of them (I’m using audacity because I need need to look at the wave form to see which part to listen).

A button “delete the local file” would have been handy, but it’s missing (I can only “close” the loaded sound file).

What’s the quickest way to delete the local file? (And the audacity temp file if it automatically create one when I load the sound into the app).

Optional: and how to apply the change (trimmed/cropped version) directly to the file (I’m not interested to save the temp audacity file)

Could Mute instead of delete [x].