Revert "[pre-commit] show isort configuration for debugging"

This reverts commit 992a9c3d.

.pre-commit-config.yaml

@@ -5,7 +5,7 @@ repos:
     rev: 5.9.3
     hooks:
       - id: isort
-        args: [--settings-path, "pyproject.toml", --show-config]
+        args: [--settings-path, "pyproject.toml"]
   - repo: https://github.com/psf/black
     rev: 21.7b0
     hooks: