Fix possible texture problems from too aggressive stereoization.

The auto-fix patched some other textures that were not clearly related, so went through them all to remove the extra lines that should not be stereoized.

246 files modified to remove excess stereoization.
Possibly busted shader from decompile/recompile.
Add Mike's empirical fix for shadows.

2 shaders that don't follow other rules, with an experimental fix.
Developed from SR4, seems to be identical on SR3.