STORM-1676 FIXED Removed "Powered by Google" label from the nearby chat floater.

indra/newview/skins/default/xui/da/floater_nearby_chat.xml

...a/newview/skins/default/xui/da/panel_preferences_chat.xml

indra/newview/skins/default/xui/de/floater_nearby_chat.xml

indra/newview/skins/default/xui/de/panel_nearby_chat.xml

...a/newview/skins/default/xui/de/panel_preferences_chat.xml

indra/newview/skins/default/xui/en/panel_nearby_chat.xml

indra/newview/skins/default/xui/es/floater_nearby_chat.xml

indra/newview/skins/default/xui/es/panel_nearby_chat.xml

...a/newview/skins/default/xui/es/panel_preferences_chat.xml

indra/newview/skins/default/xui/fr/floater_nearby_chat.xml

indra/newview/skins/default/xui/fr/panel_nearby_chat.xml

...a/newview/skins/default/xui/fr/panel_preferences_chat.xml

indra/newview/skins/default/xui/it/floater_nearby_chat.xml

indra/newview/skins/default/xui/it/panel_nearby_chat.xml

...a/newview/skins/default/xui/it/panel_preferences_chat.xml

indra/newview/skins/default/xui/ja/floater_nearby_chat.xml

indra/newview/skins/default/xui/ja/panel_nearby_chat.xml

...a/newview/skins/default/xui/ja/panel_preferences_chat.xml

indra/newview/skins/default/xui/pl/floater_nearby_chat.xml

...a/newview/skins/default/xui/pl/panel_preferences_chat.xml