Followup tweaks to module EXAMPLES, per comments in #29039 (#30248)

* Drop hosts: tasks: boilerplate from EXAMPLES string

Should be just individual tasks
https://docs.ansible.com/ansible/latest/dev_guide/developing_modules_documenting.html#examples-block

* Demonstrate url with port in one of the EXAMPLES

lib/ansible/modules/remote_management/manageiq/manageiq_provider.py

@@ -160,8 +160,6 @@ options:
 '''
 
 EXAMPLES = '''
-  - hosts: 127.0.0.1
-    tasks:
 - name: Create a new provider in ManageIQ ('Hawkular' metrics)
   manageiq_provider:
     name: 'EngLab'
@@ -219,14 +217,12 @@ EXAMPLES = '''
         XUsdmRaWiF+l4s6Dcd56SuRp5SGNa2+vP9Of/FX5
         -----END CERTIFICATE-----
     manageiq_connection:
-          url: 'https://127.0.0.1'
+      url: 'https://127.0.0.1:80'
       username: 'admin'
       password: 'password'
       verify_ssl: true
 
 
-  - hosts: 127.0.0.1
-    tasks:
 - name: Update an existing provider named 'EngLab' (defaults to 'Prometheus' metrics)
   manageiq_provider:
     name: 'EngLab'
@@ -289,8 +285,6 @@ EXAMPLES = '''
       verify_ssl: true
 
 
-  - hosts: 127.0.0.1
-    tasks:
 - name: Delete a provider in ManageIQ
   manageiq_provider:
     name: 'EngLab'
@@ -303,8 +297,6 @@ EXAMPLES = '''
       verify_ssl: true
 
 
-  - hosts: 127.0.0.1
-    tasks:
 - name: Create a new Amazon provider in ManageIQ using token authentication
   manageiq_provider:
     name: 'EngAmazon'
@@ -318,8 +310,6 @@ EXAMPLES = '''
       url: 'https://127.0.0.1'
       token: 'VeryLongToken'
       verify_ssl: true
-
-
 '''
 
 RETURN = '''