Remove an accidentally added include.

Change-Id: I747854ee918df97d12d7d0ed1a5fecfb10d8d805
diff --git a/WebKit/android/jni/WebCoreJniOnLoad.cpp b/WebKit/android/jni/WebCoreJniOnLoad.cpp
index fbbdbb5..6711e6b 100644
--- a/WebKit/android/jni/WebCoreJniOnLoad.cpp
+++ b/WebKit/android/jni/WebCoreJniOnLoad.cpp
@@ -56,7 +56,6 @@
 #include "TextEncoding.h"
 #include "WebCoreViewBridge.h"
 #include "WebFrameView.h"
-#include "WebHistory.h"
 #include "WebViewCore.h"
 
 #include "SkBitmap.h"