pullrequest overview: remove custom handling of 'my pullrequests' Re-use the same displaying code for the 'my pullrequests' overview as for the repository pullrequests overview. Remove the now unused CSS styling as well. This removes the 'delete' button on the author's pullrequests. One could argue whether the pullrequest overview is the right place for this button, while it does not appear on the pull request page itself.