Remove unnecessary module parameters

remove cases of required=False, the default
remove str type specifier which, the default
remove supports check mode, not changeable

awx_collection/plugins/modules/tower_settings.py

@@ -26,25 +26,21 @@ options:
     name:
       description:
         - Name of setting to modify
-      required: False
       type: str
     value:
       description:
         - Value to be modified for given setting.
         - If given a non-string type, will make best effort to cast it to type API expects.
         - For better control over types, use the C(settings) param instead.
-      required: False
       type: str
     settings:
       description:
         - A data structure to be sent into the settings endpoint
-      required: False
       type: dict
       version_added: "3.7"
     tower_oauthtoken:
       description:
         - The Tower OAuth token to use.
-      required: False
       type: str
       version_added: "3.7"
 requirements:
@@ -112,9 +108,9 @@ def coerce_type(module, value):
 def main():
     # Any additional arguments that are not fields of the item can be added here
     argument_spec = dict(
-        name=dict(required=False),
-        value=dict(required=False),
-        settings=dict(required=False, type='dict'),
+        name=dict(),
+        value=dict(),
+        settings=dict(type='dict'),
     )
 
     # Create a module for ourselves