RDMA/efa: Remove unused includes

Remove leftover includes that are no longer used from the driver.

Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/efa/efa.h

@@ -7,10 +7,8 @@
 #define _EFA_H_
 
 #include <linux/bitops.h>
-#include <linux/idr.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
-#include <linux/sched.h>
 
 #include <rdma/efa-abi.h>
 #include <rdma/ib_verbs.h>