add cvmfs-config-computecanada-test-1.4.3, remove other test package formats
Update to cvmfs-config-computecanada-test-1.4.3. Don't need the tarball or deb packages for cvmfs-config-test, just RPM.
Update to cvmfs-config-computecanada-test-1.4.3. Don't need the tarball or deb packages for cvmfs-config-test, just RPM.