Disable inheritance remapping for now to improve performance

The inheritance traversal was bypassing the plugin classloader cache;
will need to be reworked. Disabling it measurably improves memory
usage and startup time. This change will cause some NMS plugins to not
be completely remapped, however, most plugins should be unaffected
(and they were not completely remapped by SrgTools either).

Reopens #87 NMS: Inheritance remapping missing
But should help with #97 consumes fill all ram with bukkit plugins