Deleted constructors

libsemigroups::KnuthBendixCongruenceByPairs::KnuthBendixCongruenceByPairs() = delete

Deleted.

libsemigroups::KnuthBendixCongruenceByPairs::KnuthBendixCongruenceByPairs(KnuthBendixCongruenceByPairs&&) = delete

Deleted.

libsemigroups::KnuthBendixCongruenceByPairs::KnuthBendixCongruenceByPairs(KnuthBendixCongruenceByPairs const&) = delete

Deleted.

KnuthBendixCongruenceByPairs &libsemigroups::KnuthBendixCongruenceByPairs::operator=(KnuthBendixCongruenceByPairs&&) = delete

Deleted.

KnuthBendixCongruenceByPairs &libsemigroups::KnuthBendixCongruenceByPairs::operator=(KnuthBendixCongruenceByPairs const&) = delete

Deleted.