[DRE-maint] Bug#1103364: RM: ruby-omniauth-saml -- ROM; leaf package, originally packaged for gitlab

[Pirate Praveen]

Package: ftp.debian.org
Severity: normal
X-Debbugs-Cc: ruby-omniauth-saml at packages.debian.org, praveen at debian.org
Control: affects -1 + src:ruby-omniauth-saml
User: ftp.debian.org at packages.debian.org
Usertags: remove

gitlab no longer has a hard dependency on any ruby gem (it can install these
from rubygems.org).

gitlab 17.6.5-7 dropped this dependency.