Remove all deprecated use_buefy logic

also remove some static files no longer used, etc.

tailbone/templates/custorders/create.mako

@@ -4,22 +4,16 @@
 
 <%def name="extra_styles()">
   ${parent.extra_styles()}
-  % if use_buefy:
-      <style type="text/css">
-        .this-page-content {
-            flex-grow: 1;
-        }
-      </style>
-  % endif
+  <style type="text/css">
+    .this-page-content {
+        flex-grow: 1;
+    }
+  </style>
 </%def>
 
 <%def name="page_content()">
   <br />
-  % if use_buefy:
-      <customer-order-creator></customer-order-creator>
-  % else:
-      <p>Sorry, but this page is not supported by your current theme configuration.</p>
-  % endif
+  <customer-order-creator></customer-order-creator>
 </%def>
 
 <%def name="order_form_buttons()">