free NULL cleanup -- coda

After the finale, the "real" final part. :)  Do a recursive grep with
"-B1 -w [a-zA-Z0-9_]*_free" to see if any of the preceeding lines are
an "if NULL" check that can be removed.

Reviewed-by: Tim Hudson <tjh@openssl.org>

crypto/pqueue/pqueue.c

@@ -82,9 +82,6 @@ pitem *pitem_new(unsigned char *prio64be, void *data)
 
 void pitem_free(pitem *item)
 {
-    if (item == NULL)
-        return;
-
     OPENSSL_free(item);
 }
 
@@ -100,9 +97,6 @@ pqueue_s *pqueue_new()
 
 void pqueue_free(pqueue_s *pq)
 {
-    if (pq == NULL)
-        return;
-
     OPENSSL_free(pq);
 }