Fix #12530: detect Windows if closing RFS.

This change ultimately short-circuits the ACTIVE_CLOSE
setting, by not requiring the user to set it explicitly via
JAVA_OPTS. We are aware of the RawFileStore closing requirement
on Windows, hence we do it there.
Revert "Fix ONEE during in-place import."

This reverts commit fb58e1159fda3e013593c3d6f0288b0794742509.

Conflicts:
	components/blitz/src/ome/formats/importer/transfers/AbstractExecFileTransfer.java
Remove ACTIVE_CLOSE.
Log RFS error at DEBUG.
Merge pull request #2982 from bpindelski/12530-inplace

Fix #12530: detect Windows if closing RFS.