Use glib memory allocation and free functions

qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/async.c b/async.c
index 3fe70b9..9d4e960 100644
--- a/async.c
+++ b/async.c
@@ -43,7 +43,7 @@
 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
 {
     QEMUBH *bh;
-    bh = qemu_mallocz(sizeof(QEMUBH));
+    bh = g_malloc0(sizeof(QEMUBH));
     bh->cb = cb;
     bh->opaque = opaque;
     bh->next = first_bh;
@@ -74,7 +74,7 @@
         bh = *bhp;
         if (bh->deleted) {
             *bhp = bh->next;
-            qemu_free(bh);
+            g_free(bh);
         } else
             bhp = &bh->next;
     }