staging: gdm724x: remove duplicated include from gdm_lte.c

Remove duplicated include.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gdm724x/gdm_lte.c

@@ -21,9 +21,7 @@
 #include <linux/if_arp.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
-#include <linux/in.h>
 #include <linux/in6.h>
-#include <linux/udp.h>
 #include <linux/tcp.h>
 #include <linux/icmp.h>
 #include <linux/icmpv6.h>