Remove invalid RocksJava native entry (#9147)

Summary:
It seems that an incorrect native source file entry was introduced in https://github.com/facebook/rocksdb/pull/8999. For some reason it appears that CI was not run against that PR, and so the problem was not detected.

This PR fixes the problem by removing the invalid entry, allowing RocksJava to build correctly again.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9147

Reviewed By: pdillinger

Differential Revision: D32300976

fbshipit-source-id: dbd763b806bacf0fc08f4deaf07c63d0a266c4cf

java/Makefile

@@ -50,7 +50,6 @@ NATIVE_JAVA_CLASSES = \
 	org.rocksdb.OptimisticTransactionDB\
 	org.rocksdb.OptimisticTransactionOptions\
 	org.rocksdb.Options\
-	org.rocksdb.OptionsString\
 	org.rocksdb.OptionsUtil\
 	org.rocksdb.PersistentCache\
 	org.rocksdb.PlainTableConfig\