Remove outdated remoteMap

Remove the old and outdated remoteMap plugin.  Also removes the
directory for linvodb in databases and the troubleshooting step related
to linvodb.

lib/npmPostinstall.js

@@ -56,7 +56,6 @@ function download(url, file, callback){
 }
 
 var directories = [
-	"database/linvodb",
 	"sharedMods",
 	"instances",
 ];