fix: remove clean because arm workers are now immutable

.ci/Jenkinsfile

@@ -322,12 +322,6 @@ def generateFunctionalTestStep(Map args = [:]){
             dir("${BASE_DIR}"){
               withEnv(["GOARCH=${goArch}"]) {
                 withSecretVault(secret: "${VAULT_INSTRUMENTATION_SECRET}", user_key: "apmServerToken", user_var_name: "APM_SECRET_TOKEN", pass_key: "apmServerUrl", pass_var_name: "APM_SERVER_URL"){
-                  whenTrue(goArch == 'arm64'){
-                    sh script: "docker-compose --version", label: "Check compose version"
-                    // defensive programming: clean up test-framework workspace and docker state on arm64
-                    sh script: "make clean", label: "Clean state for non-immutable arm workers"
-                  }
-
                   sh script: """.ci/scripts/functional-test.sh "${suite}" "${tags}" "${STACK_VERSION}" "${BEAT_VERSION}" """, label: "Run functional tests for ${suite}:${tags}"
                 }
               }