LPS-39767 Regular Reviewer Roles inherited from User Groups
LPS-39767 Since we're backporting this, don't make the fix rely on a new portal api
Will revert for master but not for ee-6.1.x, Revert "LPS-39767 Since we're backporting this, don't make the fix rely on a new portal api"

This reverts commit 0f8aa57617d2cf0a76d3b7f92c4c95200eae887d.