smoketest: remove OpenOffice.org 1.0 XML format export tests

... which fail since the export filter was disabled in
aeeaccf59abbc485d7786486f1accc1cb4d4dbf7.

(cherry picked from commit 694a6478c1cfe18579dc9b355bda3db836b0b3a2)

This is part of the fix for fdo#74979.

Change-Id: I10969a96394d2972376a792af645ff48ccdab7c0
Reviewed-on: https://gerrit.libreoffice.org/8938
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>
Tested-by: Kohei Yoshida <libreoffice@kohei.us>