Remove reference to cisco_cfg_agent.ini from setup.cfg
Remove reference to cisco_cfg_agent.ini from setup.cfg

No sample .ini file is included, causing install to fail.
Remove the reference for now.

Change-Id: I6dc88062cfd47ecee7ca9fc4e6ba64ce65d8ef07
Closes-bug: #1351466

Tehsmash/networking-cisco-apic