gnucash-on-windows master: Update libofx to 0.9.13

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash-on-windows/commit/8a61821b (commit)
	from  https://github.com/Gnucash/gnucash-on-windows/commit/1ef3508b (commit)



commit 8a61821b8f20c0b85b870c55e6cb66b0dd3fe928
Author: Geert Janssens <geert at kobaltwit.be>
Date:   Tue May 1 22:51:00 2018 +0200

    Update libofx to 0.9.13
    
    This version obsoletes our tempfile patch (it's included in the
    release).



Summary of changes:
 gnucash.modules               |   6 +--
 patches/libofx-tempfile.patch | 113 ------------------------------------------
 2 files changed, 2 insertions(+), 117 deletions(-)
 delete mode 100644 patches/libofx-tempfile.patch