[Ohrrpgce] SVN: teeemcee/10980 rotozoom: Delete shrinking functions and unneeded simplified functions

[subversion at HamsterRepublic.com]

teeemcee
2019-02-21 22:03:32 -0800 (Thu, 21 Feb 2019)
307
rotozoom: Delete shrinking functions and unneeded simplified functions

The 32-bit shrinker is inferior to the one I wrote, surface_scale, because it
supports integer shrink factors only. The 8-bit shrinker is for greyscale only,
not useful.

zoomSurface was just a duplication of half of rotozoomSurfaceXY!
---
U   wip/rotozoom.c
U   wip/rotozoom.h