misc: Replace 'struct QEMUTimer' by 'QEMUTimer'

Most code already used QEMUTimer without the redundant 'struct' keyword.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/hw/ppc/ppc_booke.c b/hw/ppc/ppc_booke.c
index b421620..d839960 100644
--- a/hw/ppc/ppc_booke.c
+++ b/hw/ppc/ppc_booke.c
@@ -64,10 +64,10 @@
 struct booke_timer_t {
 
     uint64_t fit_next;
-    struct QEMUTimer *fit_timer;
+    QEMUTimer *fit_timer;
 
     uint64_t wdt_next;
-    struct QEMUTimer *wdt_timer;
+    QEMUTimer *wdt_timer;
 
     uint32_t flags;
 };