draw: switch over to draw_pt paths, will remove old code shortly

src/gallium/auxiliary/draw/draw_context.c

@@ -49,8 +49,6 @@ struct draw_context *draw_create( void )
    draw->use_sse = FALSE;
 #endif
 
-   draw->use_pt_shaders = GETENV( "GALLIUM_PT_SHADERS" ) != NULL;
-
    /* create pipeline stages */
    draw->pipeline.wide_line  = draw_wide_line_stage( draw );
    draw->pipeline.wide_point = draw_wide_point_stage( draw );

src/gallium/auxiliary/draw/draw_private.h

@@ -258,7 +258,6 @@ struct draw_context
    boolean line_stipple;       /**< do line stipple? */
    boolean point_sprite;       /**< convert points to quads for sprites? */
    boolean use_sse;
-   boolean use_pt_shaders;	/* temporary flag to switch on pt shader paths */
 
    /* If a prim stage introduces new vertex attributes, they'll be stored here
     */

src/gallium/auxiliary/draw/draw_pt.c

@@ -68,9 +68,6 @@ draw_pt_arrays(struct draw_context *draw,
 
    if (!draw->rasterizer->bypass_vs) {
       opt |= PT_SHADE;
-
-      if (!draw->use_pt_shaders)
-	 return FALSE;
    }