Remove mention of s3UsePathStyle setting

Removed the mention of `s3UsePathStyle`, which seems to be nowhere to be found. I'm guessing it was removed at some point.

For details, see:
https://github.com/cloudnative-pg/plugin-barman-cloud/issues/588

Signed-off-by: Andreas Lindhé <7773090+lindhe@users.noreply.github.com>

web/docs/troubleshooting.md

@@ -406,7 +406,7 @@ For detailed PITR configuration and WAL management, see the
 
 3. **Adjust provider-specific settings (endpoint, path style, etc.)**
    - See [Object Store Configuration](object_stores.md) for provider-specific settings
-   - Ensure `endpointURL` and `s3UsePathStyle` match your storage type
+   - Ensure `endpointURL` is set correctly for your storage provider
    - Verify network policies allow egress to your storage provider
 
 ## Diagnostic Commands