Changes

Revert "ttcn3-docker-run.sh: Fix dumpcap failing to access /data inside docker"

This reverts commit 2b9c8e3db8cf77c5ce5c3f888365f983f3ee8d76, as it
causes a lot of testsuites to fail with e.g.

  + network_replace_subnet_in_configs
  + set +x
  Applying SUBNET=161 to: /home/osmocom-build/jenkins/workspace/ttcn3-ggsn-test/logs/ggsn-all/osmo-ggsn.cfg
  Applying SUBNET=161 to: /home/osmocom-build/jenkins/workspace/ttcn3-ggsn-test/logs/ggsn-tester-all/GGSN_Tests.cfg
  sed: couldn't open temporary file /home/osmocom-build/jenkins/workspace/ttcn3-ggsn-test/logs/ggsn-tester-all/sedsByWIc: Permission denied

Let's discuss how to fix the dumpcap problem instead in OS#6455.

Change-Id: Ic98e8206d8251060b777fc7d0b4497ba3e1caf7f