nvmet-fc: Remove unused functions

commit 1b304c006b0fb4f0517a8c4ba8c46e88f48a069c upstream.

The functions nvmet_fc_iodnum() and nvmet_fc_fodnum() are currently
unutilized.

Following commit c534320 ("nvme-fabrics: Add target support for FC
transport"), which introduced these two functions, they have not been
used at all in practice.

Remove them to resolve the compiler warnings.

Fix follow errors with clang-19 when W=1e:
  drivers/nvme/target/fc.c:177:1: error: unused function 'nvmet_fc_iodnum' [-Werror,-Wunused-function]
    177 | nvmet_fc_iodnum(struct nvmet_fc_ls_iod *iodptr)
        | ^~~~~~~~~~~~~~~
  drivers/nvme/target/fc.c:183:1: error: unused function 'nvmet_fc_fodnum' [-Werror,-Wunused-function]
    183 | nvmet_fc_fodnum(struct nvmet_fc_fcp_iod *fodptr)
        | ^~~~~~~~~~~~~~~
  2 errors generated.
  make[8]: *** [scripts/Makefile.build:207: drivers/nvme/target/fc.o] Error 1
  make[7]: *** [scripts/Makefile.build:465: drivers/nvme/target] Error 2
  make[6]: *** [scripts/Makefile.build:465: drivers/nvme] Error 2
  make[6]: *** Waiting for unfinished jobs....

Fixes: c534320 ("nvme-fabrics: Add target support for FC transport")
Signed-off-by: WangYuli <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
(cherry picked from commit d54fdcf171f0b7d7a9dbeaadd85273b89e6c513d)
Signed-off-by: Vijayendra Suman <[email protected]>

Author: Avenger-285714

drivers/nvme/target/fc.c

@@ -173,20 +173,6 @@ struct nvmet_fc_tgt_assoc {
 	struct rcu_head			rcu;
 };
 
-
-static inline int
-nvmet_fc_iodnum(struct nvmet_fc_ls_iod *iodptr)
-{
-	return (iodptr - iodptr->tgtport->iod);
-}
-
-static inline int
-nvmet_fc_fodnum(struct nvmet_fc_fcp_iod *fodptr)
-{
-	return (fodptr - fodptr->queue->fod);
-}
-
-
 /*
  * Association and Connection IDs:
  *