Drop FREECIV_DEV_SAVE_COMPAT_3_1 from master. I started looking at this simply because it would time to do that in this phase of the release cycle. However, when looking at it, I realized that the the code in question is dead code anyway. dev-compat functions are only entered when loading earlier development version of the savegame format currently in development, i.e., 3.2 in case of master.
Drop FREECIV_DEV_SAVE_COMPAT_3_1 from master. I started looking at this simply because it would time to do that in this phase of the release cycle. However, when looking at it, I realized that the the code in question is dead code anyway. dev-compat functions are only entered when loading earlier development version of the savegame format currently in development, i.e., 3.2 in case of master.