Update appsettings.json

tests/Adapters/Microsoft.Bot.Builder.Adapters.Facebook.PrimaryTestBot/appsettings.json

@@ -1,5 +1,5 @@
 {
-  "FacebookVerifyToken": "020cdd25ff574505ad1ec067a66d81cd",
-  "FacebookAppSecret": "a23869525b994f369d871b58d5ced6ea",
-  "FacebookAccessToken": "EAAGtmGAq3MgBAIzFgN9ogIMSzsMmm3CZCFsXb2S4lqO5pL1JG9POFzvB3JR3YqrQUtHQGLdcikKQ7maU7ngdYZA1c36ou9uyGRYKUipO5J4MElkOAZA49HcuLUF2KcpLZAiEzE9659aMmqKQjebESlb2Rurbw97blMoGovLbsQZDZD"
+  "FacebookVerifyToken": "",
+  "FacebookAppSecret": "",
+  "FacebookAccessToken": ""
 }