Remove vpp_api_test interface name filter catalog

Remove vpp_api_test interface name filter catalog

If I remember correctly, I added the interface name filter catalog to
avoid cluttering up the vat interface table with [unused] packet
generator interfaces. Since we no longer create pg interfaces we're
not planning to use, the filter catalog does more harm than
good. Every new interface name prefix would have had to be added to
the list, and folks wouldn't likely know they should do that...

Change-Id: I4067f8ba70ad13c8dc5ebaf21a23759a2cf2675e
Signed-off-by: Dave Barach <dave@barachs.net>