Goal is to deprecate the IAM-Policy-Controller in ACM 2.9 (open to ACM 2.10)

We see not many customer, the customer who use it really don't have critical usecases which could not be achieved with other policies

Provide info for the following steps:

1. - [ ] Mandatory Add the required version to the Fix version/s field.

2. - [ ] Mandatory Choose the type of documentation change.

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.8/html/governance/governance#iam-policy-controller

add a deprecated comment

      - [ ] Update to an existing topic

3. - [ ] Mandatory for GA content:
            
       - [ ] Add steps and/or other important conceptual information here: 
       
            
       - [ ] Add Required access level for the user to complete the task here:
       

       - [ ] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)
     
     
       - [ ] Add link to dev story here: