Coverity: Dead local store in DigestUtil.java

In org.​wildfly.​security.​mechanism.​digest.​DigestUtil.​parseResponse(byte[], java.​nio.​charset.​Charset, boolean, org.​wildfly.​security.​_private.​ElytronMessages): This instruction assigns a value to a local variable, but the value is not read or used in any subsequent instruction

https://scan7.coverity.com/reports.htm#v23632/p11778/fileInstanceId=40661976&defectInstanceId=8722291&mergedDefectId=1462036