Source: Remove reduntant save() call

Source::clear_etags does a save already, so it's not needed to call
it twice.
2 jobs for master in 21 minutes and 29 seconds (queued for 17 seconds)
Status Job ID Name Coverage
  Test
passed #85593
flatpak

00:20:40

 
  Lint
passed #85594
rustfmt

00:00:49