HID: remove 2 unused usb.h includes

These 2 are left over from the USB dependency cleaning, so there is
no need to keep them.

[jkosina@suse.cz: fix filename]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index f65e78b..b61715f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -42,7 +42,6 @@
 #include <linux/hid.h>
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/usb.h>
 #include <linux/input/mt.h>
 #include <linux/string.h>
 
diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index 29f328f..3edd4ac 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -12,7 +12,6 @@
  */
 
 #include <linux/device.h>
-#include <linux/usb.h>
 #include <linux/hid.h>
 #include <linux/module.h>