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/qemu-tool.c b/qemu-tool.c
index 41e5c41..eb89fe0 100644
--- a/qemu-tool.c
+++ b/qemu-tool.c
@@ -76,12 +76,12 @@
 QEMUTimer *qemu_new_timer(QEMUClock *clock, int scale,
                           QEMUTimerCB *cb, void *opaque)
 {
-    return qemu_malloc(1);
+    return g_malloc(1);
 }
 
 void qemu_free_timer(QEMUTimer *ts)
 {
-    qemu_free(ts);
+    g_free(ts);
 }
 
 void qemu_del_timer(QEMUTimer *ts)