RDMA/rxe: Delete deprecated module parameters interface

Starting from the commit 66920e1 ("rdma_rxe: Use netlink messages
to add/delete links") from the 2019, the RXE modules parameters are marked
as deprecated in favour of rdmatool. So remove the kernel code too.

Link: https://lore.kernel.org/r/c8376d7517aebe7cc851f0baaeef7b13707cf767.1641372460.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/sw/rxe/Makefile

@@ -22,5 +22,4 @@ rdma_rxe-y := \
 	rxe_mcast.o \
 	rxe_task.o \
 	rxe_net.o \
-	rxe_sysfs.o \
 	rxe_hw_counters.o

drivers/infiniband/sw/rxe/rxe.c

@@ -13,8 +13,6 @@ MODULE_AUTHOR("Bob Pearson, Frank Zago, John Groves, Kamal Heib");
 MODULE_DESCRIPTION("Soft RDMA transport");
 MODULE_LICENSE("Dual BSD/GPL");
 
-bool rxe_initialized;
-
 /* free resources for a rxe device all objects created for this device must
  * have been destroyed
  */
@@ -290,7 +288,6 @@ static int __init rxe_module_init(void)
 		return err;
 
 	rdma_link_register(&rxe_link_ops);
-	rxe_initialized = true;
 	pr_info("loaded\n");
 	return 0;
 }
@@ -301,7 +298,6 @@ static void __exit rxe_module_exit(void)
 	ib_unregister_driver(RDMA_DRIVER_RXE);
 	rxe_net_exit();
 
-	rxe_initialized = false;
 	pr_info("unloaded\n");
 }
 

drivers/infiniband/sw/rxe/rxe.h

@@ -39,8 +39,6 @@
 
 #define RXE_ROCE_V2_SPORT		(0xc000)
 
-extern bool rxe_initialized;
-
 void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
 
 int rxe_add(struct rxe_dev *rxe, unsigned int mtu, const char *ibdev_name);