Comment 1 for bug 1595822

Bug apparently caused by this part in 65-droid-sans-fallback.conf:

        <alias>
                <family>monospace</family>
                <prefer>
                        <family>Droid Sans Fallback</family>
                </prefer>
        </alias>

Since no language-selector files related to ja are installed, I am moving this problem to fonts-droid.