docs(spdx-utils): Remove an obsolete SpdxSimpleLicenseMapping sentence

The remark about ambiguity due to a missing version became somewhat
obsolete with e7247e0.

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

utils/spdx/src/main/kotlin/SpdxSimpleLicenseMapping.kt

@@ -23,9 +23,8 @@ import com.fasterxml.jackson.module.kotlin.readValue
 
 /**
  * A mapping from simple license names to valid SPDX license IDs. This mapping only contains license strings which *can*
- * be parsed by [SpdxExpression.parse] but have a corresponding valid SPDX license ID that should be used instead. When
- * mapping a name without any indication of a version to an ID with a version, the most commonly used version at the
- * time of writing is used. See [SpdxDeclaredLicenseMapping] for a mapping of unparsable license strings.
+ * be parsed by [SpdxExpression.parse] but have a corresponding valid SPDX license ID that should be used instead. See
+ * [SpdxDeclaredLicenseMapping] for a mapping of unparsable license strings.
  */
 object SpdxSimpleLicenseMapping {
     /**