Revert "cosmetics, surround anonymous struct initialisers with guard"
Revert "cosmetics, surround anonymous struct initialisers with guard"

This reverts commit 69b6d23d2c4281129cf67cef2d612b424e98e07b.

Obviously, since config.h will not be installed there is no way of checking
for HAVE_ANON_STRUCTS, so just leave it.

rudimeier/dateutils,rudimeier/dateutils,rudimeier/dateutils