fix: remove filters from header file

Author: ayushsharma82

Diff for: libraries/WebServer/src/WebServer.h

@@ -293,12 +293,4 @@ class WebServer {
   String _srealm;  // Store the Auth realm between Calls
 };
 
-/*
-  Request Filters
-*/
-
-bool ON_STA_FILTER(WebServer &server);
-
-bool ON_AP_FILTER(WebServer &server);
-
 #endif  //ESP8266WEBSERVER_H