#5 Cleanup

[Olivier Rolland]

This patch removes some unused code from requant.c/h:
- removed the THREAD constant
- removed USE_FD and CHANGE_BRIGHTNESS constants (cannot be used in THREAD mode)
- removed the WIN constant (cannot be used without USE_FD)
- removed types redundant with stdint/inttypes
- removed some comments

[Olivier Rolland]

vamps-0.99.2-4-cleanup.patch