Revert "AMBARI-5948. Unable to Deploy Cluster After Wizard Step 7.(xiwang)"

This reverts commit 48e3201efd5e9c486cabe17b5db68153ceb32f49. This is done to commit AMBARI-5951 which addresses the same issue for both installer and add service wizard.
AMBARI-5951. Installer does not proceed beyond Customize Services if Hive is not selected. (yusaku via jaimin)