Revert "opensim currency support"

indra/llcommon/CMakeLists.txt

indra/llcommon/llcurrencywrapper.cpp

indra/llcommon/llcurrencywrapper.h

indra/llinventory/lltransactionflags.cpp

indra/llui/llbutton.cpp

indra/llui/llbutton.h

indra/llui/llfloater.cpp

indra/llui/llfloater.h

indra/llui/lltextbox.cpp

indra/llui/lltextbox.h

indra/llui/lluistring.cpp

indra/llui/lluistring.h

indra/newview/llcurrencyuimanager.cpp

indra/newview/llfloaterauction.cpp

indra/newview/llfloaterbuycurrency.cpp

indra/newview/llpanelgroupcreate.cpp

indra/newview/llpanelgrouplandmoney.cpp

indra/newview/llstartup.cpp

indra/newview/llstatusbar.cpp

indra/newview/llstatusbar.h