check-cert: adjust text for remaining validity

Remaining validity: 84 day(s) (Jan 14 14:23:17 2024 +0000)
->
Server certificate validity: 84 day(s)

CMK-17764

Change-Id: I81beb66196473c4ca24660c0a29f032e88b996e1

packages/site/check-cert/src/checker/certificate.rs

@@ -321,9 +321,8 @@ fn check_validity_not_after(
         Some(time_to_expiration) => levels.check(
             time_to_expiration,
             OutputType::Summary(format!(
-                "Remaining validity: {} day(s) ({})",
+                "Server certificate validity: {} day(s)",
                 time_to_expiration.whole_days(),
-                not_after
             )),
             LevelsCheckerArgs::builder()
                 .label("certificate_remaining_validity")