DRY up GUI wiki pages - Mailing list pgsql-general

I learned today there are "two" wiki pages for GUI clients:

https://wiki.postgresql.org/wiki/PostgreSQL_Clients

https://wiki.postgresql.org/wiki/Community_Guide_to_PostgreSQL_GUI_Tools

I'd like to DRY them up so there aren't two lists which confuses
newcomers.  Any objections?  If not I'll probably make one of those
pages into GUI's and one into "non GUI's" or something like that.
Cheers!