[PR #11049/396f467b backport][stable-12] Improve Python code: address unused variables (#11058)

Improve Python code: address unused variables (#11049)

* Address F841 (unused variable).

* Reformat.

* Add changelog fragment.

* More cleanup.

* Remove trailing whitespace.

* Readd removed code as a comment with TODO.

(cherry picked from commit 396f467bbb)

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/modules/vmadm.py

@@ -500,7 +500,7 @@ def create_payload(module, uuid):
 
     try:
         vmdef_json = json.dumps(vmdef)
-    except Exception as e:
+    except Exception:
         module.fail_json(msg="Could not create valid JSON payload", exception=traceback.format_exc())
 
     # Create the temporary file that contains our payload, and set tight