Bug#1031160: RM: openjfx [arm64 armhf] -- RoQA; no longer builds on arm64 and armhf

[Adrian Bunk]

Package: ftp.debian.org
Severity: normal
X-Debbugs-Cc: Debian Java Maintainers <pkg-java-maintainers at lists.alioth.debian.org>

The package no longer builds on arm64 and armhf,
see #1021894 for background.

(Temporary?) removal of the arm64 and armhf lets other RC bugfixes
in this key package migrate to testing.

Reverse build dependencies dak finds are in binary-all packages.