docker: remove unnecessary perl-base package from image

Signed-off-by: Andras Timar <[email protected]>
Change-Id: I50321d563eff98bd6102a9ec4fa2ab2fdacf6dea

docker/from-packages/Dockerfile

@@ -108,14 +108,8 @@ RUN --mount=type=secret,id=secret_key \
     fi && \
 # Fix ownership of config directory that will be modified on start of the container by cool user
     chown cool:cool /etc/coolwsd && \
-# Remove packages that are not needed
-# FIXME: long way to go, the commands below remove coolwsd, too.
-#    apt-get remove -y --allow-remove-essential adduser apt bsdutils debconf debian-archive-keyring debianutils \
-#        diffutils dpkg e2fsprogs findutils gcc-10-base gcc-9-base gpgv grep gzip hostname init-system-helpers \
-#        login logsave mawk mount ncurses-base ncurses-bin passwd perl-base sed sysvinit-utils tar util-linux \
-#        cpio tzdata libcap2-bin apt-transport-https gnupg2 ca-certificates curl && \
-#    apt-get remove -y --allow-remove-essential cpio tzdata libcap2-bin apt-transport-https gnupg2 ca-certificates curl \
-#         mount e2fsprogs dpkg apt && \
+# Remove perl-base, it's not needed and triggered some license scanner because of Paul Hsieh derivative license
+    dpkg --purge  --force-remove-essential --ignore-depends=perl-base perl-base && \
 # Cleanup
     rm -rf /var/lib/apt/* && \
 # Remove WOPI Proof key generated by the package, we need unique key for each container