Remove non RE2 job config

This causees a linting failure, and the equivalent of this rule was
removed later in I64909aa932635b729cc85717dc241ae31798b558

Change-Id: Id8e1a0901090f062ff36101f07acafe01a98a67b

Author: steveb

zuul.d/ironic-python-agent-jobs.yaml

@@ -104,7 +104,6 @@
       - ^ironic_python_agent/tests/.*$
       - ^releasenotes/.*$
       - ^setup.cfg$
-      - ^tools/(?!bandit.yml).*$
       - ^tox.ini$
 
 # used by ironic-python-agent-builder