Revert "Merge pull request #69 from opf/feature/edit_and_delete_shared_versions"

This reverts commit 6dac5ce8799fe2f88dac4600c936b7ccb4a0542b, reversing
changes made to ef9feb97ed0edcf6bf0c9ba87794284ec6ae5914.

The changes where in the wrong place as the view gets overwritten by backlogs.