Staging: gdm724x: Remove unnecessary print statements

Remove print statements that provide information about error messages
when memory allocation is failed.
Issue found using coccinelle
The following semantic patch is used to solve this:

<smpl>
@@
expression x;
constant char[] C;
identifier f;
@@

x = (\(kmalloc\|devm_kzalloc\|kmalloc_array\|devm_ioremap\|
usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\)(...));

if(x==NULL)
{
...
(
-f(C,...);
|
-f(...,C);
)
...
}
</smpl>

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/gdm724x/gdm_lte.c

@@ -871,7 +871,6 @@ int register_lte_device(struct phy_dev *phy_dev,
 		net = alloc_netdev(sizeof(struct nic), pdn_dev_name,
 				   NET_NAME_UNKNOWN, ether_setup);
 		if (!net) {
-			pr_err("alloc_netdev failed\n");
 			ret = -ENOMEM;
 			goto err;
 		}