When starting BWC nodes, it could be that runtime Java home is set. Yet,
runtime Java home can advance beyond what a BWC node might be compatible
with. For example, if runtime Java home is set to JDK 13 and we are
starting a 7.1.2 node, we do not have any guarantees that 7.1.2 is
compatible with JDK 13 (since we never did any work to make it so). This
will continue to be the case as JDK releases advance, but we still need
to test against BWC nodes. This commit stops applying runtime Java home
when starting a BWC node. Instead, we would use the bundled JDK.
0eeb080a72