gnucash maint: [c-interface] Deprecate gnc:make-string-database

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/bf671d4f (commit)
	from  https://github.com/Gnucash/gnucash/commit/a0a234d4 (commit)



commit bf671d4fc7e344a643460f464fdbcb31be1786c7
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Wed Dec 23 23:44:51 2020 +0800

    [c-interface] Deprecate gnc:make-string-database
    
    It's only used by date-utilities.scm
    
    This removes the date-utilities -> c-interface dependency.



Summary of changes:
 libgnucash/app-utils/c-interface.scm    |  2 ++
 libgnucash/app-utils/date-utilities.scm | 11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)