Remove unused ampjs template variable (#274)

* Remove old, now unused, ${ampjs}

* Delete Notes.md

Author: morsssss

amp-camp/Notes.md

@@ -3,8 +3,6 @@
 <link rel="canonical" href="[%&CanonicalLink%]">
 <meta name="amp-google-client-id-api" content="googleanalytics">
 
-${ampjs}
-
 <link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700" rel="stylesheet">