build: remove LOG_LIST_ACTIONS option and related code

It has not been used for a long time and the likelihood of it still working is
low.

src/nvim/memory.c

@@ -816,7 +816,6 @@ void free_all_mem(void)
   grid_free_all_mem();
 
   clear_hl_tables(false);
-  list_free_log();
 
   check_quickfix_busy();