Revert custom sponsor url in nav

Author: mattstratton

layouts/partials/events/event_navbar.html

@@ -26,13 +26,6 @@
                     {{- $.Scratch.Set "url" $e.registration_link -}}
                   {{- end -}}
                 {{- end -}}
-              {{- end -}}
-              {{- if eq .name "sponsor" -}}
-                {{- if $e.sponsor_link -}}
-                  {{- if ne $e.sponsor_link "" -}}
-                    {{- $.Scratch.Set "url" $e.sponsor_link -}}
-                  {{- end -}}
-                {{- end -}}
               {{- end -}}
                 <li class="nav-item active">
                   <a class="nav-link" href="{{$.Scratch.Get "url" }}">{{ .name }}</a>