[spline/bezier]Fix the remains of differences between dx9 and opengl.
[spline/bezier]Remove unnecessary initialization of array.
Merge pull request #7189 from xebra/spline_bezier

  [spline/bezier]Fix the remains of differences between dx9 and opengl.
Goodbye PowerPC, you can always be resurrected when the time comes
Get rid of PowerPC from the MSVC project files as well
Remove a few stragglers from PPC.

This makes it so the build isn't dirty every time.