To remove code dup and prepare a change to where logs are written, add
collect_logs() to jenkins_common.sh and call that from each jenkins.sh after
the tests are done.
The 'rm -rf' is already done before a test starts. No need to do that again
after each test.
Change-Id: I5d8472ec36b07c828685b1bd7718e31392d168a3
This is no longer needed as the fix for https://osmocom.org/issues/2718
has been merged to master of osmo-ttcn3-hacks
Change-Id: Ia0c1c134405fdbce1c65059d705827f1a643e774
Related: OS#2718