[m-rev.] for review: fix unused pred warnings for library/store.m

[Zoltan Somogyi]

For review by anyone. The diff is with -b.

Zoltan.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Log.store
Type: application/octet-stream
Size: 2528 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20201121/f751888d/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DIFF.store
Type: application/octet-stream
Size: 5128 bytes
Desc: not available
URL: <http://lists.mercurylang.org/archives/reviews/attachments/20201121/f751888d/attachment-0001.obj>