chore: Removed a header that was accidentally copied in.

src/main/java/com/aparapi/examples/mapreduce/Main.java

-/**
- * This product currently only contains code developed by authors
- * of specific components, as identified by the source code files.
- *
- * Since product implements StAX API, it has dependencies to StAX API
- * classes.
- *
- * For additional credits (generally to people who reported problems)
- * see CREDITS file.
- */
-
 package com.aparapi.examples.mapreduce;
 
 import com.aparapi.Kernel;