Remove unneeded .py scripts

The ipa.py has been moved to osmo-python-tests as osmo_ipa - use it for
vty and ctrl tests instead of local copy. The soap.py and twisted_ipa.py
are not MSC-specific: leftovers from repository split which are now
available in osmo-python-tests as well.

Change-Id: Ia3ab77846c9beae7eca32a81079a4a9bfa4dcc75
8 files changed