Remove unused RestrictionsSet.dumpRestrictions()

import org.xmlpull.v1.XmlPullParserException;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.List;

        throw new XmlPullParserException("restrictions cannot be read as xml is malformed.");

    }

    /**

     * Dumps {@link RestrictionsSet}.

     */

    public void dumpRestrictions(PrintWriter pw, String prefix) {

        boolean noneSet = true;

        for (int i = 0; i < mUserRestrictions.size(); i++) {

            pw.println(prefix + "User Id: " + mUserRestrictions.keyAt(i));

            UserRestrictionsUtils.dumpRestrictions(pw, prefix + "  ", mUserRestrictions.valueAt(i));

            noneSet = false;

        }

        if (noneSet) {

            pw.println(prefix + "none");

        }

    }

    /** @return list of users in this restriction set. */

    public IntArray getUserIds() {

        IntArray userIds = new IntArray(mUserRestrictions.size());