st/mesa: replace REALLOC() with realloc()

We should use the later since we're freeing the memory with free(),
not the gallium FREE() macro.

This fixes a mismatch when using the gallium debug memory functions.

NOTE: This is a candidate for the 9.0 branch.

src/mesa/state_tracker/st_mesa_to_tgsi.c

@@ -118,11 +118,8 @@ static unsigned *get_label( struct st_translate *t,
    unsigned i;
 
    if (t->labels_count + 1 >= t->labels_size) {
-      unsigned old_size = t->labels_size;
       t->labels_size = 1 << (util_logbase2(t->labels_size) + 1);
-      t->labels = REALLOC( t->labels, 
-                           old_size * sizeof t->labels[0], 
-                           t->labels_size * sizeof t->labels[0] );
+      t->labels = realloc(t->labels, t->labels_size * sizeof t->labels[0]);
       if (t->labels == NULL) {
          static unsigned dummy;
          t->error = TRUE;
@@ -146,11 +143,8 @@ static void set_insn_start( struct st_translate *t,
                             unsigned start )
 {
    if (t->insn_count + 1 >= t->insn_size) {
-      unsigned old_size = t->insn_size;
       t->insn_size = 1 << (util_logbase2(t->insn_size) + 1);
-      t->insn = REALLOC( t->insn, 
-                         old_size * sizeof t->insn[0], 
-                         t->insn_size * sizeof t->insn[0] );
+      t->insn = realloc(t->insn, t->insn_size * sizeof t->insn[0]);
       if (t->insn == NULL) {
          t->error = TRUE;
          return;