None of these USB files need idr.h, so don't include it.
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
-#include <linux/idr.h>
#include <linux/usb.h>
#include "usb.h"
#include <linux/prefetch.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/idr.h>
#include <linux/dma-mapping.h>
#include "musb_core.h"