Remove the fixed Account Type row from the profile page (closes #401)

The profile page showed "Account Type: Standard User" as fixed text,
even for admin, the account webhooker creates as its administrator.
webhooker has no account types, so the row is gone. The own-profile
test now checks that the page renders its Account Information section
without an Account Type row.

Model: opus-5-5

templates/profile.html

@@ -41,10 +41,6 @@
                     <dt class="w-32 text-sm font-medium text-gray-500">Username</dt>
                     <dd class="text-sm text-gray-900">{{.User.Username}}</dd>
                 </div>
-                <div class="flex">
-                    <dt class="w-32 text-sm font-medium text-gray-500">Account Type</dt>
-                    <dd class="text-sm text-gray-900">Standard User</dd>
-                </div>
             </dl>
         </div>
     </div>