i965: Drop BRW_NEW_VERTEX_PROGRAM and _NEW_TRANSFORM from Gen4 VS state.

These stopped being necessary in commit ab973403e4.

v2: Update commit message with a better explanation (thanks to Eric
    Anholt for doing the git archaeology).

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

src/mesa/drivers/dri/i965/brw_vs_state.c

@@ -96,7 +96,7 @@ brw_upload_vs_unit(struct brw_context *brw)
       brw->vs.prog_data->base.base.dispatch_grf_start_reg;
    vs->thread3.urb_entry_read_offset = 0;
 
-   /* BRW_NEW_CURBE_OFFSETS, _NEW_TRANSFORM, BRW_NEW_VERTEX_PROGRAM */
+   /* BRW_NEW_CURBE_OFFSETS */
    vs->thread3.const_urb_entry_read_offset = brw->curbe.vs_start * 2;
 
    /* BRW_NEW_URB_FENCE */
@@ -183,13 +183,12 @@ brw_upload_vs_unit(struct brw_context *brw)
 
 const struct brw_tracked_state brw_vs_unit = {
    .dirty = {
-      .mesa  = _NEW_TRANSFORM,
+      .mesa  = 0,
       .brw   = BRW_NEW_BATCH |
                BRW_NEW_CURBE_OFFSETS |
                BRW_NEW_PROGRAM_CACHE |
                BRW_NEW_SAMPLER_STATE_TABLE |
                BRW_NEW_URB_FENCE |
-               BRW_NEW_VERTEX_PROGRAM |
                BRW_NEW_VS_PROG_DATA,
    },
    .emit = brw_upload_vs_unit,