D10312: FileUndoManager: don't delete non-existing local files

[Elvis Angelaccio]

elvisangelaccio marked 3 inline comments as done.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D10312

To: elvisangelaccio, dfaure
Cc: ngraham, #frameworks, michaelh