Code cleanup / Cycles:

* Remove unused hair presets enum.

intern/cycles/render/curves.h

@@ -29,16 +29,6 @@ class Scene;
 
 void curvebounds(float *lower, float *upper, float3 *p, int dim);
 
-typedef enum curve_presets {
-	CURVE_CUSTOM,
-	CURVE_FAST_PLANES,
-	CURVE_TANGENT_SHADING,
-	CURVE_TRUE_NORMAL,
-	CURVE_ACCURATE_PRESET,
-	CURVE_SMOOTH_CURVES,
-	CURVE_SMOOTH_RIBBONS
-} curve_presets;
-
 typedef enum curve_primitives {
 	CURVE_TRIANGLES,
 	CURVE_LINE_SEGMENTS,