Remove deletion of THS in restore script

As noted in a PR review [0] (unfortunately after merge), this stanza is a no-op in the context of a backup restore and should be removed.

[0]: #4133 (review)

install_files/ansible-base/roles/restore/files/restore.py

@@ -8,7 +8,6 @@
 """
 
 import os
-import shutil
 import subprocess
 import sys
 import tarfile
@@ -36,13 +35,6 @@ def verify_args():
 def main():
     verify_args()
 
-    # Remove the /var/lib/tor/services directories to purge values that may have been
-    # generated by running the ansible playbooks
-    for d in ['journalist', 'source']:
-        full_path = os.path.join('/var/lib/tor/services', d)
-        if os.path.exists(full_path):
-            shutil.rmtree(full_path)
-
     with tarfile.open(sys.argv[1], 'r:*') as backup:
         # This assumes that both the old installation (source of the backup)
         # and the new installation (destination of the restore) used the