run-tests: remove dead code related to temp directory

Differential Revision: https://phab.mercurial-scm.org/D1749

tests/run-tests.py

@@ -2404,11 +2404,6 b' class TestRunner(object):'
                 print("error: temp dir %r already exists" % tmpdir)
                 return 1
 
-                # Automatically removing tmpdir sounds convenient, but could
-                # really annoy anyone in the habit of using "--tmpdir=/tmp"
-                # or "--tmpdir=$HOME".
-                #vlog("# Removing temp dir", tmpdir)
-                #shutil.rmtree(tmpdir)
             os.makedirs(tmpdir)
         else:
             d = None