Remove unnecessary part

Author: sfuhrm

.github/workflows/jacoco-badge-ref.yml

@@ -9,11 +9,6 @@ on:
     branches: [ master ]
 
 jobs:
-  maven_version:
-    uses: sfuhrm/github_workflows/.github/workflows/maven-expression.yml@main
-    with:
-      java_version: 21
-      expression: project.version
   call-workflow-passing-data:
     needs: maven_version
     uses: sfuhrm/github_workflows/.github/workflows/jacoco-badge.yml@main