bpf: Remove unused backtrack_state helper functions

The function are defined in the verifier.c file, but not called
elsewhere, so delete the unused function.

kernel/bpf/verifier.c:3448:20: warning: unused function 'bt_set_slot'
kernel/bpf/verifier.c:3453:20: warning: unused function 'bt_clear_slot'
kernel/bpf/verifier.c:3488:20: warning: unused function 'bt_is_slot_set'

Reported-by: Abaci Robot <[email protected]>
Signed-off-by: Yang Li <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Acked-by: Eduard Zingerman <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]

Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7714

0 files changed, 0 insertions, 0 deletions