Revert "AMBARI-3244. Ambari Client improve errors handling. (Andrew vi mahadev)"

This reverts commit d98cfd9ca0ddd24f1e293bf0d3e877118a171765.
AMBARI-3244. Ambari Client improve errors handling. (Andrew Onischuk via mahadev)
AMBARI-3244. Ambari Client improve errors handling. (Andrew Onischuk via mahadev)
AMBARI-3265. Add alert for iptables on host checks on the UI. (srimanth)
AMBARI-3153: Secure cluster: Yarn service check fails after configuring yarn for spnego authentication. (jaimin)
AMBARI-3262. Upgrade from Comanche to BWGA is failed (Dmytro Sen via dlysnichenko)
AMBARI-3256. 'Percent NodeManager Live' alert and 'Percent NodeManager healthy' alert for YARN service work with a considerable delay (Andrew Onischuk via dlysnichenko)
AMBARI-3269. Incorrect indication of paging for "Jobs" page. (onechiporenko)
AMBARI-3268. The help bubbles for conf. parameters on "Customize Services" page have confusing info. (onechiporenko)
AMBARI-3271. Incorrect displaying of "Clients" list on host details page. (Andrii Babiichuk via yusaku)
AMBARI-3263. Ambar-client updates for JIRA-3201. (Andrew Onischuk via mahadev)
AMBARI-3257. Ambari-Client https support. (Andrew Onischuk via mahadev)
AMBARI-3275. NameNode HA wizard (rollback): Before sending delete command check if component exists
AMBARI-3276. Dashboard page: buttons are shifted if screen width is more than 1200px. (xiwang via yusaku)
AMBARI-3278. NameNode HA Wizard: update manual instructions to make sure that the user runs the commands as the hdfs user. (yusaku)
AMBARI-3277. HDFS shows red when NameNode HA is enabled. (xiwang via yusaku)
AMBARI-3279. Strange behavior of "JobTracker CPU WIO" dashboard widget. (xiwang via yusaku)
AMBARI-3280. Add Component button appears when logged in as a non-admin user. (xiwang via yusaku)
AMBARI-3281. There is no indication of the datanode is decommissioned on the FE on 2.x stack. (srimanth)
AMBARI-3282. Unnecessary comma (,) when a data node is decommissioned the second time. (srimanth)