Remove trailing whitespace.

Change-Id: I95534bb2b88eaf48f2329282041118cd034c812b
diff --git a/docs/jni-tips.html b/docs/jni-tips.html
index fc63cca..76cb03f 100644
--- a/docs/jni-tips.html
+++ b/docs/jni-tips.html
@@ -124,7 +124,7 @@
      * class/field/method IDs for this class.  Returns false on failure.
      */
     native private static boolean nativeClassInit();
- 
+
     /*
      * Invoke the native initializer when the class is loaded.
      */