make rmi instrumentation indy-compatible

Author: SylvainJuge

instrumentation/rmi/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/rmi/context/RmiContextPropagationInstrumentationModule.java

@@ -20,13 +20,6 @@ public RmiContextPropagationInstrumentationModule() {
     super("rmi", "rmi-context-propagation");
   }
 
-  @Override
-  public boolean isIndyModule() {
-    // java.lang.IllegalAccessError: class
-    // io.opentelemetry.javaagent.instrumentation.rmi.context.client.RmiClientContextInstrumentation$StreamRemoteCallConstructorAdvice (in unnamed module @0x740ee00f) cannot access class sun.rmi.transport.Connection (in module java.rmi) because module java.rmi does not export sun.rmi.transport to unnamed module @0x740ee00f
-    return false;
-  }
-
   @Override
   public List<TypeInstrumentation> typeInstrumentations() {
     return asList(new RmiClientContextInstrumentation(), new RmiServerContextInstrumentation());