The "this is everything that I've worked on, if this interests you, contact me" is different than a "this is the information relevant to the job that I am applying for."
If you've got a CV hosted somewhere with CMS and you still do CMS stuff and want to get hired to do CMS stuff... leave it on there. If you don't want to do CMS stuff, take it off.
If you are applying to a job that isn't doing CMS stuff, on your resume that you're sending to them don't have more than a single bullet point for that old job about CMS duties.
If you've got a CV hosted somewhere with CMS and you still do CMS stuff and want to get hired to do CMS stuff... leave it on there. If you don't want to do CMS stuff, take it off.
If you are applying to a job that isn't doing CMS stuff, on your resume that you're sending to them don't have more than a single bullet point for that old job about CMS duties.