r300g: Cleanup old PSC code a bit.

src/gallium/drivers/r300/r300_state_derived.c

@@ -114,13 +114,9 @@ static void r300_vertex_psc(struct r300_context* r300)
     uint16_t type, swizzle;
     enum pipe_format format;
     unsigned i;
-    int identity[16] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
-    int* stream_tab;
 
     memset(vformat, 0, sizeof(struct r300_vertex_stream_state));
 
-    stream_tab = identity;
-
     /* Vertex shaders have no semantics on their inputs,
      * so PSC should just route stuff based on the vertex elements,
      * and not on attrib information. */
@@ -133,7 +129,7 @@ static void r300_vertex_psc(struct r300_context* r300)
         format = r300->velems->velem[i].src_format;
 
         type = r300_translate_vertex_data_type(format) |
-            (stream_tab[i] << R300_DST_VEC_LOC_SHIFT);
+            (i << R300_DST_VEC_LOC_SHIFT);
         swizzle = r300_translate_vertex_data_swizzle(format);
 
         if (i & 1) {