remove useless env variable

Author: SylvainJuge

jmx-scraper/src/integrationTest/java/io/opentelemetry/contrib/jmxscraper/target_systems/JettyIntegrationTest.java

@@ -38,7 +38,6 @@ protected GenericContainer<?> createTargetContainer(int jmxPort) {
 
     container
         .withEnv("JAVA_OPTIONS", genericJmxJvmArguments(jmxPort))
-        .withEnv("LOCAL_JMX", "no")
         .withStartupTimeout(Duration.ofMinutes(2))
         .waitingFor(Wait.forLogMessage(".*Started Server.*", 1));