Linux: removed documentation of parameter

The parameter is not present in the linux implementation so removed
the documentation for the parameter.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

src/drivers/device/vdev.h

@@ -167,7 +167,6 @@ protected:
 	 * Constructor
 	 *
 	 * @param name		Driver name
-	 * @param irq		Interrupt assigned to the device.
 	 */
 	Device(const char *name);