Remove Misleading comment

Close does not actually flush any pending events; update comment to match

Author: alewitt

src/main/java/com/launchdarkly/client/LDClient.java

@@ -365,7 +365,7 @@ private JsonElement evaluate(String featureKey, LDUser user, JsonElement default
   }
 
   /**
-   * Closes the LaunchDarkly client event processing thread and flushes all pending events. This should only
+   * Closes the LaunchDarkly client event processing thread. This should only
    * be called on application shutdown.
    *
    * @throws IOException
@@ -448,4 +448,4 @@ private static String getClientVersion() {
       return "Unknown";
     }
   }
-}
+}