USB HID: use CONFIG_HID_DEBUG for outputting report descriptor

Report descriptor should be output when CONFIG_HID_DEBUG is defined.

This also mitigates the need for DEBUG and DEBUG_DATA defines, so let's
remove them.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index 905156c..378af7a 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -27,9 +27,6 @@
 #include <linux/input.h>
 #include <linux/wait.h>
 
-#undef DEBUG
-#undef DEBUG_DATA
-
 #include <linux/usb.h>
 
 #include <linux/hid.h>
@@ -1109,7 +1106,7 @@
 	if ((quirks & HID_QUIRK_CYMOTION))
 		hid_fixup_cymotion_descriptor(rdesc, rsize);
 
-#ifdef DEBUG_DATA
+#ifdef CONFIG_HID_DEBUG
 	printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
 	for (n = 0; n < rsize; n++)
 		printk(" %02x", (unsigned char) rdesc[n]);