Signature
Description
Revokesrole from account. Emits RoleRevoked.
Dev: Reverts with AccessControlUnauthorizedAccount when the caller does not hold the admin role for role,
or when the token has been transitioned to admin-less via renounceLastAdmin.
Dev: Reverts with LastAdminCannotRenounce when role == DEFAULT_ADMIN_ROLE and account is the last default admin.
Use renounceLastAdmin to clear the final admin.
Param: role Role to revoke.
Param: account Account to revoke from.