storm-1037: remove the "hide url" checkboxes in parcel management

indra/llinventory/llparcel.cpp

indra/llinventory/llparcel.h

indra/newview/llfloaterauction.cpp

indra/newview/llpanellandaudio.cpp

indra/newview/llpanellandmedia.cpp

indra/newview/llpanelnearbymedia.cpp

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

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

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

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

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

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

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

indra/newview/skins/default/xui/nl/floater_about_land.xml

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

indra/newview/skins/default/xui/pt/floater_about_land.xml