ParameterInfoInvocationHandler#getPrefixedParameterName has a pointless http session check

the ParameterInfoInvocationHandler#getPrefixedParameterName implementation is completely pointless. First of all, downstream projects should just override the behavior if something specific is desired...but the default should just be as simple as:

protected String getPrefixedParameterName(final String parameterName, final ParameterConfiguration parameterConfiguration, final HttpServletRequest req) {
            return parameterName;
        }