What were you trying to do that didn't work?

apr-util-devel has unnecessary dependencies on lmdb-devel, libaprutil-1.so does not link against liblmdb (only /usr/lib64/apr-util-1/apr_dbm_lmdb-1.so from apr-util-ldap does) so there is no need for liblmdb-devel to be present when linking against libaprutil-1.

$ ldd /usr/lib64/libaprutil-1.so.0 | grep lmdb
$ 

$ rpm -q --requires apr-util-devel | grep lmdb
lmdb-devel(x86-64)