format style of ApiUtilTest

Author: 317787106

framework/src/test/java/org/tron/core/jsonrpc/ApiUtilTest.java

@@ -1,6 +1,5 @@
 package org.tron.core.jsonrpc;
 
-
 import static org.tron.common.utils.Commons.decodeFromBase58Check;
 import static org.tron.keystore.Wallet.generateRandomBytes;