Removed unnecessary JNI utility definitions.
Removed unnecessary JNI utility definitions.

pombredanne/rubicon-java,pybee/rubicon-java,pombredanne/rubicon-java,RomanKharin/rubicon-java,pybee/rubicon-java,pybee/rubicon-java,RomanKharin/rubicon-java,RomanKharin/rubicon-java,pombredanne/rubicon-java