Rename endpoint

Every endpoint in this file is to do with a service. Putting service in
the name is redundant.

app/main/views/service_settings.py

@@ -161,7 +161,7 @@ def service_name_change_confirm(service_id):
 @main.route("/services/<service_id>/service-settings/request-to-go-live", methods=['GET', 'POST'])
 @login_required
 @user_has_permissions('manage_settings', admin_override=True)
-def service_request_to_go_live(service_id):
+def request_to_go_live(service_id):
     form = RequestToGoLiveForm()
 
     if form.validate_on_submit():

app/templates/views/service-settings.html

@@ -228,7 +228,7 @@
 
       <p>
         To remove these restrictions
-        <a href="{{ url_for('.service_request_to_go_live', service_id=current_service.id) }}">request to go live</a>.
+        <a href="{{ url_for('.request_to_go_live', service_id=current_service.id) }}">request to go live</a>.
       </p>
     {% else %}
       <h2 class="heading-medium">Your service is live</h2>