remove listener for sending gc events to chronos

This isn't being used much and creates an annoying dependency
chain with iep libs. If needed we'll create a new sub-project
under iep with this listener that a user can choose to opt
into.

spectator-nflx-plugin/build.gradle

@@ -4,11 +4,7 @@ dependencies {
   compile project(':spectator-ext-jvm')
   compile project(':spectator-ext-sandbox')
   compile project(':spectator-reg-servo')
-  compile "com.fasterxml.jackson.core:jackson-databind:$version_jackson"
   compile "com.google.inject:guice:$version_guice"
   compile "com.netflix.archaius:archaius-core:$version_archaius1"
-  compile "com.netflix.eureka:eureka-client:$version_eureka"
-  compile "com.netflix.iep-shadow:iepshadow-iep-module-rxnetty:$version_iep"
-  compile "com.netflix.iep-shadow:iepshadow-iep-rxhttp:$version_iep"
   testCompile "com.netflix.governator:governator:$version_governator"
 }

spectator-nflx-plugin/src/main/java/com/netflix/spectator/nflx/Plugin.java

@@ -43,14 +43,14 @@ final class Plugin {
 
   /** Create a new instance. */
   @Inject
-  Plugin(Registry registry, ChronosGcEventListener listener) throws IOException {
+  Plugin(Registry registry) throws IOException {
 
     AbstractConfiguration config = ConfigurationManager.getConfigInstance();
     final boolean enabled = config.getBoolean(ENABLED_PROP, true);
     if (enabled) {
       ConfigurationManager.loadPropertiesFromResources(CONFIG_FILE);
       if (config.getBoolean("spectator.gc.loggingEnabled")) {
-        GC_LOGGER.start(listener);
+        GC_LOGGER.start(null);
         LOGGER.info("gc logging started");
       } else {
         LOGGER.info("gc logging is not enabled");

spectator-nflx-plugin/src/main/java/com/netflix/spectator/nflx/SpectatorModule.java

@@ -16,7 +16,6 @@
 package com.netflix.spectator.nflx;
 
 import com.netflix.spectator.servo.ServoRegistry;
-import iep.com.netflix.iep.rxnetty.RxNettyModule;
 
 import javax.annotation.PreDestroy;
 import javax.inject.Inject;
@@ -63,7 +62,6 @@
  */
 public final class SpectatorModule extends AbstractModule {
   @Override protected void configure() {
-    install(new RxNettyModule());
     bind(Plugin.class).asEagerSingleton();
     bind(StaticManager.class).asEagerSingleton();
   }

spectator-nflx-plugin/src/main/java/com/netflix/spectator/nflx/TestModule.java

@@ -16,8 +16,6 @@
 package com.netflix.spectator.nflx;
 
 import com.google.inject.AbstractModule;
-import iep.com.netflix.iep.http.BasicServerRegistry;
-import iep.com.netflix.iep.http.ServerRegistry;
 import com.netflix.spectator.api.DefaultRegistry;
 import com.netflix.spectator.api.ExtendedRegistry;
 import com.netflix.spectator.api.Registry;
@@ -35,8 +33,5 @@ public final class TestModule extends AbstractModule {
     final Registry registry = new DefaultRegistry();
     bind(ExtendedRegistry.class).toInstance(new ExtendedRegistry(registry));
     bind(Registry.class).toInstance(registry);
-
-    // Allows auto-plugin to come up without needing to get DiscoveryClient to work
-    bind(ServerRegistry.class).toInstance(new BasicServerRegistry());
   }
 }

spectator-nflx-plugin/src/main/resources/spectator.properties

@@ -17,14 +17,3 @@
 
 # Should we enable gc logging? Only checked at startup.
 spectator.gc.loggingEnabled=true
-
-# Should we send gc events to chronos backend? Logging must be enabled. This property is only
-# checked at startup.
-spectator.gc.chronosEnabled=true
-
-# Rest client for chronos gc backend
-chronos_gc.niws.client.ReadTimeout=15000
-chronos_gc.niws.client.ConnectTimeout=5000
-chronos_gc.niws.client.MaxAutoRetriesNextServer=2
-chronos_gc.niws.client.GzipEnabled=false
-chronos_gc.niws.client.DeploymentContextBasedVipAddresses=chronos_backend-gc:7001