chore(clearly-defined): Do not handle an exception that cannot be thrown

The `ClearlyDefinedService` uses kotlinx-serialization and not Jackson.

Signed-off-by: Sebastian Schuberth <[email protected]>

plugins/package-curation-providers/clearly-defined/src/main/kotlin/ClearlyDefinedPackageCurationProvider.kt

@@ -19,8 +19,6 @@
 
 package org.ossreviewtoolkit.plugins.packagecurationproviders.clearlydefined
 
-import com.fasterxml.jackson.databind.JsonMappingException
-
 import java.net.HttpURLConnection
 
 import okhttp3.OkHttpClient
@@ -127,11 +125,6 @@ class ClearlyDefinedPackageCurationProvider(
                     }
                 }
 
-                is JsonMappingException -> {
-                    e.showStackTrace()
-                    logger.warn { "Deserializing the curations failed: ${e.collectMessages()}" }
-                }
-
                 else -> {
                     e.showStackTrace()
                     logger.warn { "Querying curations failed: ${e.collectMessages()}" }