correct the reduplicate tests for list_severs_with_detail({'limit':1})

Currently, the test test_list_servers_detailed_filter_by_limit is the
same as test_list_servers_detailed_limit_results, so change it to test
list_servers not list_servers_with_detail.

Change-Id: I879dfe79b3dcb99b9e1c9f9cc5413cee4349b73a
Merge "correct the reduplicate tests for list_severs_with_detail({'limit':1})"