Remove unused import in RetraceApiBinaryCompatiblityTest

Change-Id: If02d8934bab650140da2fb6543d29898578c0cd8

src/test/java/com/android/tools/r8/retrace/api/RetraceApiBinaryCompatibilityTest.java

diff --git a/src/test/java/com/android/tools/r8/retrace/api/RetraceApiBinaryCompatibilityTest.java b/src/test/java/com/android/tools/r8/retrace/api/RetraceApiBinaryCompatibilityTest.java
index 2c52863..df7c599 100644
--- a/src/test/java/com/android/tools/r8/retrace/api/RetraceApiBinaryCompatibilityTest.java
+++ b/src/test/java/com/android/tools/r8/retrace/api/RetraceApiBinaryCompatibilityTest.java
@@ -21,7 +21,6 @@
 import java.util.List;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.junit.Assume;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
 import org.junit.runner.RunWith;