Remove WFC roaming from search keywords

    <string name="keywords_wifi">wifi wi-fi network connection</string>

    <string name="keywords_more_default_sms_app">text message texting messages messaging</string>

    <string name="keywords_more_mobile_networks">cellular cell carrier wireless data 4g 3g 2g lte</string>

    <string name="keywords_wifi_calling">wifi wi-fi call calling roaming handoff</string>

    <string name="keywords_wifi_calling">wifi wi-fi call calling</string>

    <string name="keywords_home">launcher</string>

    <string name="keywords_display">screen touchscreen</string>

    <string name="keywords_display_brightness_level">dim screen touchscreen battery</string>