Revert a stray, unrelated change from r23556

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23564 57a11ea4-9604-0410-9ed3-97b8803252fd
Fix ax_pkg_swig.m4 filename.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23565 57a11ea4-9604-0410-9ed3-97b8803252fd