Reduce error messages on command failure

We are currently seeing some errors logged multiple times. With this
patch we remove the cliff log handlers when running commands removing
duplicated errors on the console.

Author: Akrog

src/rhos_ls_mcps/osc.py

@@ -275,7 +275,13 @@ def __init__(
 
     def configure_logging(self) -> None:
         """Configure logging for the OpenStack shell and cliff app."""
+        root = logging.getLogger()
+        handlers_before = list(root.handlers)
         super().configure_logging()
+        # Remove any handlers cliff added to the root logger
+        for handler in list(root.handlers):
+            if handler not in handlers_before:
+                root.removeHandler(handler)
 
         # We need to change the LOG variable to make sure it uses the right stderr instead of sys.stderr
         console = logging.StreamHandler(self.stderr)