run-tests: drop unused resultslock

tests/run-tests.py

@@ -1061,7 +1061,6 b' def _checkhglib(verb):'
                          % (verb, actualhg, expecthg))
 
 results = {'.':[], '!':[], 's':[], 'i':[]}
-resultslock = threading.Lock()
 times = []
 iolock = threading.Lock()
 abort = False