qemu_extdevice.c: remove unneeded 'ret' variable

qemuExtDevicesInitPaths() does not need 'ret'.
Tested-by: NSatheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Reviewed-by: NStefan Berger <stefanb@linux.ibm.com>
Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NJán Tomko <jtomko@redhat.com>

src/qemu/qemu_extdevice.c

@@ -73,12 +73,10 @@ static int
 qemuExtDevicesInitPaths(virQEMUDriverPtr driver,
                         virDomainDefPtr def)
 {
-    int ret = 0;
-
     if (def->tpm)
-        ret = qemuExtTPMInitPaths(driver, def);
+        return qemuExtTPMInitPaths(driver, def);
 
-    return ret;
+    return 0;
 }