[release] Fix unused import prior to release

Author: raphw

byte-buddy-dep/src/main/java/net/bytebuddy/dynamic/loading/ClassInjector.java

@@ -45,7 +45,6 @@
 import java.security.PrivilegedAction;
 import java.security.ProtectionDomain;
 import java.util.*;
-import java.util.concurrent.ExecutionException;
 import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 import java.util.jar.JarOutputStream;