Remove explicit dependencies from sonar-analyze

This makes it implicitly depend on every job
from stages before it, so it has access to all the data it needs.

.gitlab-ci.yml

@@ -91,7 +91,6 @@ sonar-analyze:
     - ./mvnw -ntp org.jacoco:jacoco-maven-plugin:prepare-agent initialize sonar:sonar -Dsonar.organization=codeAbility -Dsonar.host.url=https://qe-sonarqube.uibk.ac.at/ -Dsonar.login=${SONAR_TOKEN_QE} -Dmaven.repo.local=$MAVEN_USER_HOME
     - ./mvnw -ntp org.jacoco:jacoco-maven-plugin:prepare-agent initialize sonar:sonar -Dsonar.organization=codeAbility -Dsonar.host.url=https://server.arctis.at/sonar/ -Dsonar.login=${SONAR_TOKEN} -Dmaven.repo.local=$MAVEN_USER_HOME
   allow_failure: true
-  needs: ['frontend-test', 'maven-test']
 
 maven-package:
   stage: package