Removed an extra observer from  Edit Selected Element type drop down
Removed an extra observer from  Edit Selected Element type drop down

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1649057

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic