Merge "Remove times.dbm file for each tox run"

tox.ini

@@ -17,8 +17,10 @@ install_command = pip install -U {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = find . -type f -name "*.pyc" -delete
+           rm -f .testrepository/times.dbm
            python setup.py testr --testr-args='{posargs}'
 whitelist_externals = find
+                      rm
 
 [testenv:debug]
 commands = oslo_debug_helper -t troveclient/tests {posargs}