Remove obsolete file from example-lang.
Remove obsolete file from example-lang.

It's no longer necessary to implement the functions in Lucy::Util::Json for
each language, since we now have a core implementation everyone can share.


git-svn-id: 0e6074679e66e8f1cc73dfc755b08bab367f805b@1164870 13f79535-47bb-0310-9956-ffa450edef68

pombredanne/apache-lucy,apache/lucy,rectang/lucy,apache/lucy,rbevers/lucy,apache/lucy,apache/lucy,nwellnhof/lucy,nwellnhof/lucy,apache/lucy,nwellnhof/lucy,rectang/lucy,rectang/lucy,kidaa/lucy,rbevers/lucy,nwellnhof/lucy,apache/lucy,kidaa/lucy,kidaa/lucy,rectang/lucy,rbevers/lucy,kidaa/lucy,pombredanne/apache-lucy,kidaa/lucy,rbevers/lucy,nwellnhof/lucy,kidaa/lucy,rbevers/lucy,kidaa/lucy,pombredanne/apache-lucy,nwellnhof/lucy,kidaa/lucy,apache/lucy,rectang/lucy,rbevers/lucy,pombredanne/apache-lucy,nwellnhof/lucy,rbevers/lucy,rectang/lucy,pombredanne/apache-lucy,rectang/lucy,pombredanne/apache-lucy,pombredanne/apache-lucy