Drop Pre-Depends satisfied since
dpkg 1.17.17 shipped in 2014 and was part of Debian 8 (Jessie), which is long since EOL and at the time of Trixie's release will be old-old-old-old-old-stable, so it can be safely dropped now.
This eases building a package-based minimal, read-only initrd with the maintainer scripts being ran at image build time, as we can install packages and then remove apt/dpkg using --root from outside without removing perl, which is needed at runtime.
Closes: #1087762