Removed DX9 and speed optimizations

[Wesker1988]

No one ever have to be sorry for being busy! :-)

Thank you very much! So tev_fixes for accuracy were added
HLE audio code rewrite for accuracy.
and Vertex Streaming Hack, OpenGL GLSL shaders for graphics.

And there is no way to predict how much optimizations will help the performance until it's implemented,
or how much still need to be done, on the whole dolphin code at all?

thx, and sorry for all the thousand questions XD...