[DRE-maint] Bug#1102049: RM: ruby-opentracing -- ROM; not needed anymore

[Pirate Praveen]

Package: ftp.debian.org
Severity: normal
X-Debbugs-Cc: ruby-opentracing at packages.debian.org, praveen at debian.org
Control: affects -1 + src:ruby-opentracing
User: ftp.debian.org at packages.debian.org
Usertags: remove
Control: block -1 by 1102044

it was originally packaged as dependency of ruby-gitlab-labkit, which is now
marked for removal.