fix(ssh-backend): fix accidentally added rhodecode_tools import

rhodecode/apps/ssh_support/lib/backends/svn.py

@@ -25,7 +25,7 b' import tempfile'
 from subprocess import Popen, PIPE
 import urllib.parse
 
-from rhodecode_tools.lib.utils import safe_str
+from rhodecode.lib.str_utils import safe_str
 from .base import SshVcsServer
 
 log = logging.getLogger(__name__)