crypto: octeontx2 - Remove unused otx2_cpt_print_uc_dbg_info

otx2_cpt_print_uc_dbg_info() has been unused since 2023's
commit 82f89f1a ("crypto: octeontx2 - add devlink option to set t106
mode")

Remove it and the get_engs_info() helper it's the only user of.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>