CBQE-0 :: fix failover failing tests and remove redundant tests from conf

1) Fixing view queries during failover

http://qa.hq.northscale.net/job/centos_x64--03_04--Failover_UPR_Start_Stop/7/testReport/junit/failover.failovertests/FailoverTests/failover_failovertests_FailoverTests_test_failover_stop_server_createIndexesDuringFailover_True_GROUP_P0_withViewsOps_True_replicas_1_verify_unacked_bytes_True_num_failed_nodes_1_stop_on_failure_False_ini_centos_x64__01_01__autofailover_upr_ini_case_number_1_get_logs_False_graceful_False_force_kill_memached_True_logs_folder__root_jenkins_workspace_centos_x64__03_04__Failover_UPR_Start_Stop_logs_testrunner_14_Jul_30_19_41_06_test_1_total_vbuckets_128_dgm_run_True_failoverMaster_True_get_coredumps_False_items_100000_std_vbuckets_dist_8_conf_file__tmp_py_centos_newfailover_conf_num_nodes_7_cluster_name_centos_x64__01_01__autofailover_upr_numViews_5_get_cbcollect_info_False_spec_py_centos_newfailover/

2) Removed unhealthy node check during failover tests. We have moved this to negative test cases. No point having redundant test cases.

Change-Id: I7656f10c2c5cc628502607c52e62653c52638a00
Reviewed-on: http://review.couchbase.org/40098
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Reviewed-by: Parag Agarwal <agarwal.parag@gmail.com>
Tested-by: Parag Agarwal <agarwal.parag@gmail.com>