Revert "[IT-4498] Setup redirect for apex domain (Sage-Bionetworks-IT#1457)"

This reverts commit aa3dd85.

Revert due to error..
```
ERROR: Resource WebsiteBucket failed because Resource handler returned message:
"Bucket cannot have ACLs set with ObjectOwnership's BucketOwnerEnforced setting
```

Author: zaro0508

org-formation/800-redirects/_tasks.yaml

@@ -405,21 +405,3 @@ ModelAdExplorerProdAppDnsForward:
     SourceHostedZoneId: "Z038526037U7WWZ1418M6"
     # the value of the CNAME record
     TargetHostName: !CopyValue ['model-ad-prod-load-balancer-dns', !Ref AgoraProdAccount]
-
-# Issue IT-4498, redirect treat-ad.org to treatad.org
-TreatAdApexRedirect:
-  Type: update-stacks
-  Template: https://raw.githubusercontent.com/Sage-Bionetworks/aws-infra/v0.4.8/templates/s3-redirector.yaml
-  StackName: !Sub '${resourcePrefix}-treatad-redirect'
-  StackDescription: Setup a redirect from treat-ad.org to treatad.org
-  DefaultOrganizationBindingRegion: !Ref primaryRegion
-  DefaultOrganizationBinding:
-    Account: !Ref SageITAccount
-  Parameters:
-    # the endpoint we are redirecting from
-    SourceHostName: "treat-ad.org"
-    SourceAcmCertificateArn: "arn:aws:acm:us-east-1:797640923903:certificate/278a1102-c60d-4f51-81c0-6b1ca767945d"
-    # ID of the sageit.org zone (in sageit account)
-    SourceHostedZoneId: "Z08344463B10GP0C3L4G6"
-    # the endpoint we are redirecting to (AWS VPN client self service)
-    TargetHostName: "treatad.org"