Desugared library: fix test expectation

- fix red bot

Change-Id: I9ac35f931af456ffd3b21ffc508388c4194ed674

src/test/java/com/android/tools/r8/desugar/desugaredlibrary/LibraryEmptySubclassInterfaceTest.java

diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/LibraryEmptySubclassInterfaceTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/LibraryEmptySubclassInterfaceTest.java
index 98e1917..ced1c31 100644
--- a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/LibraryEmptySubclassInterfaceTest.java
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/LibraryEmptySubclassInterfaceTest.java
@@ -8,7 +8,6 @@
 import static org.hamcrest.MatcherAssert.assertThat;
 
 import com.android.tools.r8.TestParameters;
-import com.android.tools.r8.utils.AndroidApiLevel;
 import com.android.tools.r8.utils.BooleanUtils;
 import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
@@ -58,9 +57,7 @@
       return;
     }
     String keepRules = keepRuleConsumer.get();
-    assertThat(keepRules, containsString("-keep class j$.util.Map"));
     assertThat(keepRules, containsString("-keep class j$.util.concurrent.ConcurrentHashMap"));
-    assertThat(keepRules, containsString("-keep class j$.util.concurrent.ConcurrentMap"));
   }
 
   @Test