Libraries (box_lib, buf2d, libimg, tinygl): optimize function import

Рrograms updated:
- gears, test3, test_glu1, test_glu2,
- test_array1, textures0, textures1, textures2,
- crypt_files, img_transform, scrshoot, t_edit,
- cnc_control, cnc_editor

programs/load_lib.mac

@@ -23,11 +23,8 @@ library_fun_memory_free equ mem_free
 library_fun_memory_realloc equ mem_realloc
 library_fun_dll_load equ dll_load
 
-if library_fun_memory_alloc eq
-else
 align 4
 strz_lib_init db 'lib_init',0
-end if
 
 align 4
 arrea_xx dd 0