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/aio.c b/aio.c
index 2f08655..1239ca7 100644
--- a/aio.c
+++ b/aio.c
@@ -75,13 +75,13 @@
                  * releasing the walking_handlers lock.
                  */
                 QLIST_REMOVE(node, node);
-                qemu_free(node);
+                g_free(node);
             }
         }
     } else {
         if (node == NULL) {
             /* Alloc and insert if it's not already there */
-            node = qemu_mallocz(sizeof(AioHandler));
+            node = g_malloc0(sizeof(AioHandler));
             node->fd = fd;
             QLIST_INSERT_HEAD(&aio_handlers, node, node);
         }
@@ -220,7 +220,7 @@
 
                 if (tmp->deleted) {
                     QLIST_REMOVE(tmp, node);
-                    qemu_free(tmp);
+                    g_free(tmp);
                 }
             }