Revert "AMBARI-7584. Slider View: Show yarn-site and global configs in app configs page. (Max Shepel via akovalenko)"

This reverts commit ec0034df789179576cd7e2e3e45b41c5b3243c13.
Reverted because, we might want to hide categories in future. We just
dont want to hide global and yarn-site for now
AMBARI-7584. Slider View: Show yarn-site and global configs in app configs page (srimanth)