remove the remove-user get method

remove `confirm` from `confirm_remove_user_from_service` as there's
only one action now that the initial confirmation prompt takes place
on the edit permissions page

app/main/views/manage_users.py

@@ -128,22 +128,10 @@ def edit_user_permissions(service_id, user_id):
     )
 
 
-@main.route("/services/<service_id>/users/<user_id>/delete", methods=['GET'])
-@login_required
-@user_has_permissions('manage_service')
-def remove_user_from_service(service_id, user_id):
-    return redirect(url_for(
-        '.edit_user_permissions',
-        service_id=service_id,
-        user_id=user_id,
-        delete='yes'
-    ))
-
-
 @main.route("/services/<service_id>/users/<user_id>/delete", methods=['POST'])
 @login_required
 @user_has_permissions('manage_service')
-def confirm_remove_user_from_service(service_id, user_id):
+def remove_user_from_service(service_id, user_id):
     try:
         service_api_client.remove_user_from_service(service_id, user_id)
     except HTTPError as e:

app/navigation.py

@@ -212,7 +212,6 @@ class HeaderNavigation(Navigation):
         'register_from_org_invite',
         'registration_continue',
         'remove_user_from_organisation',
-        'confirm_remove_user_from_service',
         'remove_user_from_service',
         'request_letter_branding',
         'request_to_go_live',
@@ -342,7 +341,6 @@ class MainNavigation(Navigation):
         'team-members': {
             'confirm_edit_user_email',
             'confirm_edit_user_mobile_number',
-            'confirm_remove_user_from_service',
             'edit_user_email',
             'edit_user_mobile_number',
             'edit_user_permissions',
@@ -619,7 +617,6 @@ class CaseworkNavigation(Navigation):
         'confirm_edit_user_email',
         'confirm_edit_user_mobile_number',
         'confirm_redact_template',
-        'confirm_remove_user_from_service',
         'conversation',
         'conversation_reply',
         'conversation_reply_with_template',
@@ -955,7 +952,6 @@ class OrgNavigation(Navigation):
         'register_from_invite',
         'register_from_org_invite',
         'registration_continue',
-        'confirm_remove_user_from_service',
         'remove_user_from_service',
         'request_letter_branding',
         'request_to_go_live',