vc的后台使用的是svn，那么要删除一个已经入库的文件，需要执行
svn del <file>
svn commit
但是，查看 emacs version control 的命令好像只有添加/更新的操作，没有涉及删除的操作，请问各位emacs中有什么好办法在 vc 下删除文件吗？
C-x v v vc-next-action -- perform the next logical control operation on file
C-x v i vc-register -- add a new file to version control
C-x v + vc-update -- Get latest changes from version control
C-x v ~ vc-version-other-window -- look at other revisions
C-x v = vc-diff -- diff with other revisions
C-x v u vc-revert-buffer -- undo checkout
C-x v c vc-cancel-version -- delete the latest revision (often it makes more sense to look at an old revision and check that in again!)
C-x v d vc-directory -- show all files which are not up to date
C-x v g vc-annotate -- show when each line in a tracked file was added and by whom
C-x v s vc-create-snapshot -- tag all the files with a symbolic name
C-x v r vc-retrieve-snapshot -- undo checkouts and return to a snapshot with a symbolic name
C-x v l vc-print-log -- show log (not in ChangeLog format)
C-x v a vc-update-change-log -- update ChangeLog
C-x v m vc-merge
C-x v h vc-insert-headers
M-x vc-resolve-conflicts -- pop up an ediff-merge session on a file with conflict markers