docs(cyclonedx): Remove an obsolete TODO comment

A CycloneDX `LicenseChoice` can either contain a list of `License`
strings or a license `Expression`, but not both. Stick to a list of
`License` strings only as they allow to refer to the license origins.

Signed-off-by: Sebastian Schuberth <sebastian@doubleopen.org>

plugins/reporters/cyclonedx/src/main/kotlin/CycloneDxReporter.kt

@@ -336,7 +336,6 @@ class CycloneDxReporter : Reporter {
 
             hashes = listOfNotNull(hash)
 
-            // TODO: Support license expressions once we have fully converted to them.
             licenses = LicenseChoice().apply { licenses = licenseObjects }
 
             // TODO: Find a way to associate copyrights to the license they belong to, see