remove redundant header including. (esp8266/Arduino#2094)

shrhdk · shrhdk · commit 7250b2a64214 · 2016-07-17T00:46:04.000+09:00
diff --git a/src/settings_server.h b/src/settings_server.h
@@ -7,7 +7,6 @@
 
 #include <DNSServer.h>
 #include <ESP8266HTTPUpdateServer.h>
-#include <ESP8266WiFi.h>
 #include <ESP8266WebServer.h>
 
 class SettingsServerClass {
