adb: remove unnecessary include

Change-Id: I3bcba4c93834d0ac08bded0f2e3c74984f1f3f54
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/adb/usb_linux.c b/adb/usb_linux.c
index eb10118..4b5edb6 100644
--- a/adb/usb_linux.c
+++ b/adb/usb_linux.c
@@ -20,7 +20,6 @@
 #include <string.h>
 
 #include <usbhost/usbhost.h>
-#include <linux/usbdevice_fs.h>
 #include <linux/version.h>
 #if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20)
 #include <linux/usb/ch9.h>