Remove unused import

Author: pwhittlesea

src/test/java/com/evanlennick/retry4j/CallExecutorTest.java

@@ -21,7 +21,6 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.fail;
 import static org.assertj.core.api.Assertions.within;
-import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;