Thanks for reporting this!
I know it was reported quite some time ago, and we do apologize for the delay in responding to this and getting it addressed.
For now, there are two options to work around this:
1. Using Azure AD PowerShell, you can disable and then remove the app role. I’ve posted a sample script which does this here on StackOverflow: https://stackoverflow.com/a/47595128/325697
2. An alternative option is to use the Azure AD Graph Explorer and issue two PATCH requests on the Application object. The first PATCH request should set the app role’s isEnabled attribute to “false”. The second PATCH request can then remove the app role (i.e. include all existing app roles except the disabled one).
/ Philippe Signoret
26 votes1 comment · Azure Active Directory Application Requests » Single Sign-On · Flag idea as inappropriate… · Admin →
If not already, please fill out this app request form at http://aka.ms/aadappsurvey so we can follow up with you. Thanks!