[footer] Cleanup duplicate lines

Probably created from the rebase and went unnoticed until now

templates/base/footer.tmpl

@@ -45,9 +45,6 @@
 {{if .RequireAutosize}}
 	<script src="{{AppSubURL}}/plugins/autosize-4.0.2/autosize.min.js"></script>
 {{end}}
-{{if .RequireAutosize}}
-	<script src="{{AppSubURL}}/plugins/autosize-4.0.2/autosize.min.js"></script>
-{{end}}
 <script src="{{AppSubURL}}/js/libs/emojify-1.1.0.min.js"></script>
 <script src="{{AppSubURL}}/js/libs/clipboard-1.5.9.min.js"></script>