remove assets from master

assets/minecraft/shaders/program/fxaa.vsh

@@ -1,20 +0,0 @@
-#version 120
-
-attribute vec4 Position;
-
-uniform mat4 ProjMat;
-uniform vec2 OutSize;
-
-uniform float SubPixelShift;
-
-varying vec2 texCoord;
-varying vec4 posPos;
-
-void main() {
-    vec4 outPos = ProjMat * vec4(Position.xy, 0.0, 1.0);
-    gl_Position = vec4(outPos.xy, 0.2, 1.0);
-
-    texCoord = Position.xy / OutSize;
-    posPos.xy = texCoord.xy;
-    posPos.zw = texCoord.xy - (1.0/OutSize * vec2(0.5 + SubPixelShift));
-}