remove unneeded Relation#all from RepositoryBazaarTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12573 e93f8b46-1217-0410-a6f0-8f06a7374b81
remove unneeded Relation#all from RepositoryCvsTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12574 e93f8b46-1217-0410-a6f0-8f06a7374b81
remove unneeded Relation#all from RepositoryDarcsTest

git-svn-id: http://svn.redmine.org/redmine/trunk@12575 e93f8b46-1217-0410-a6f0-8f06a7374b81