Remove unused imports

Author: akarnokd

src/test/java/io/reactivex/internal/operators/observable/ObservableObserveOnTest.java

@@ -37,10 +37,8 @@
 import io.reactivex.internal.schedulers.ImmediateThinScheduler;
 import io.reactivex.observers.*;
 import io.reactivex.plugins.RxJavaPlugins;
-import io.reactivex.processors.UnicastProcessor;
 import io.reactivex.schedulers.*;
 import io.reactivex.subjects.*;
-import io.reactivex.subscribers.TestSubscriber;
 
 public class ObservableObserveOnTest {