Update the rippled-example.cfg file to reflect the new node_db syntax

Remove LEVELDB.txt

LEVELDB.txt

@@ -1,14 +0,0 @@
-
-To use LevelDB, follow these steps:
-
-1) Add the following to your rippled.cfg file:
-[node_db]
-LevelDB
-
-2) If you have no databases, you can just start rippled. If you have
-databases you don't care about, just remove them. Otherwise, start rippled
-with '--import' to import your existing hashnode database into LevelDB.
-After you import the hashnode database, either delete (or move) the
-'hashnode.db', 'hashnode.db-shm' and 'hashnode.db-wal' files from your
-database directory. Do not touch the LevelDB files in the 'hashnode'
-directory.

rippled-example.cfg

@@ -223,10 +223,8 @@
 #              shfArahZT9Q9ckTf3s1psJ7C7qzVN
 #
 # [node_db]
-#   Sets the database used for hashed nodes. Options are "LevelDB" and
-#   "SQLite". LevelDB is recommended for optimum performance and SQLite
-#   support will soon be removed. Databases can be migrated by enabling
-#   "LevelDB" and starting rippled with the "--import" flag
+#   Sets the database back end used for hashed nodes and the parameters
+#   for that back end, separated by pipe characters
 #
 # [node_size]
 #   Tunes the servers based on the expected load and available memory. Legal
@@ -298,6 +296,12 @@
 [rpc_allow_remote]
 0
 
+[node_size]
+medium
+
+[node_db]
+LevelDB|path=db/hashnode
+
 [debug_logfile]
 log/debug.log