Revert "Add Staticman app endpoint to docs site"

This reverts commit 67c08a0.

Author: mmistakes

docs/_config.yml

@@ -53,7 +53,7 @@ staticman:
       type               : # "date"
       options:
         format           : # "iso8601" (default), "timestamp-seconds", "timestamp-milliseconds"
-  endpoint               : "https://dev.staticman.net/v3/entry/github/"
+  endpoint               : # URL of your own deployment with trailing slash, will fallback to the public instance
 reCaptcha:
   siteKey                : # "6LdRBykTAAAAAFB46MnIu6ixuxwu9W1ihFF8G60Q"
   secret                 : # "PznnZGu3P6eTHRPLORniSq+J61YEf+A9zmColXDM5icqF49gbunH51B8+h+i2IvewpuxtA9TFoK68TuhUp/X3YKmmqhXasegHYabY50fqF9nJh9npWNhvITdkQHeaOqnFXUIwxfiEeUt49Yoa2waRR7a5LdRAP3SVM8hz0KIBT4="