Upgrade more code-smell tests. (#36560)

* Enhance no-dict-* code-smell tests.
* Enhance no-basestring code-smell test.
* Enhance no-get-exception code-smell test.
* Enhance empty-init code-smell test.
* Enhance required-and-default-attribute test.
* Remove unused code-smell test.

test/sanity/code-smell/empty-init.json

@@ -0,0 +1,11 @@
+{
+    "prefixes": [
+        "lib/ansible/modules/",
+        "lib/ansible/module_utils/",
+        "test/units/"
+    ],
+    "extensions": [
+        ".py"
+    ],
+    "output": "path-message"
+}