Revert changes / Unadd files

You can discard changes to files not yet committed, and you can unadd files which have been added but not yet committed.

Open the SVN Status view. If you are in Commit mode, the Revert button displays. If you are in Add mode, the Unadd button displays.
Check those files you wish to revert or unadd.
Click Revert (Commit mode) or Unadd (Add mode).
A dialog asks you to confirm your selection. Click Yes.

For modified files, the change is reverted and the previously committed version of the files is restored to your local (working) copy. For added files, the file is changed from 'added' to 'unversioned'.