Bug#865987: libpcre3: Drop hard-coded Pre-Depends on deprecated multiarch-support

[Andreas Henriksson]

Fwiw,

This would fix lintian error "pre-depends-directly-on-multiarch-support"

See
https://lintian.debian.org/tags/pre-depends-directly-on-multiarch-support.html

Regards,
Andreas Henriksson