Remove OSTF murano test for Telnet application

In MOS 6.0 Murano will not deploy Telnet application
and because of this OSTF Murano test for Telnet deploy
should be removed.

Change-Id: I66333502d1cbf17e0ac11a5466ed2e40afcde66a
Closes-Bug: #1394160
Merge "Remove OSTF murano test for Telnet application"