Clean up module documentation (#36909)

* Clean up module documentation

This PR includes:
- Removal of `default: None` (and variations)
- Removal of `required: false`
- Fixing booleans and `type: bool` where required

* Fix remaining (new) validation issues

lib/ansible/modules/network/cloudengine/ce_command.py

@@ -50,8 +50,6 @@ options:
         the task to wait for a particular conditional to be true
         before moving forward.   If the conditional is not true
         by the configured retries, the task fails.  See examples.
-    required: false
-    default: null
   match:
     description:
       - The I(match) argument is used in conjunction with the
@@ -60,7 +58,6 @@ options:
         then all conditionals in the I(wait_for) must be satisfied.  If
         the value is set to C(any) then only one of the values must be
         satisfied.
-    required: false
     default: all
   retries:
     description:
@@ -68,7 +65,6 @@ options:
         before it is considered failed.  The command is run on the
         target device every retry and evaluated against the I(wait_for)
         conditionals.
-    required: false
     default: 10
   interval:
     description:
@@ -76,7 +72,6 @@ options:
         of the command.  If the command does not pass the specified
         conditional, the interval indicates how to long to wait before
         trying the command again.
-    required: false
     default: 1
 """