contest: vm: get 'tree_path' config only once

'tree_path' config is fetched at the init phase, no need to get it again
later, simply use self.tree_path.

Signed-off-by: Matthieu Baerts (NGI0) <[email protected]>

Author: matttbe

contest/remote/lib/vm.py

@@ -116,12 +116,11 @@ def _get_ksft_timeout(self):
         default_timeout = 45 # from tools/testing/selftests/kselftest/runner.sh
 
         targets = self.config.get('ksft', 'target', fallback=None)
-        tree_path = self.config.get('local', 'tree_path', fallback=None)
-        if not targets or not tree_path:
+        if not targets:
             return default_timeout
         target = targets.split()[0]
 
-        settings_path = f'{tree_path}/tools/testing/selftests/{target}/settings'
+        settings_path = f'{self.tree_path}/tools/testing/selftests/{target}/settings'
         if not os.path.isfile(settings_path):
             return default_timeout