Redirect to Flow view action when url action is set to edit

* Flow doesn't support edit action

* Parameter is lost during the redirect, this only happens
  once for Flow topic without a revision and created before
  topic namespace introduction.

* Removed Flow\Action\Action.exectue(), it doesn't seem to do
  anything, but like werdna to confirm

Bug: 69879
Change-Id: I3534a42c6fccd081a6b408e9f6d53a931d4ab886
Merge "Redirect to Flow view action when url action is set to edit"