Bit of cleanup around Translation and remove httpassetstorage

indra/llmessage/CMakeLists.txt

indra/llmessage/llassetstorage.cpp

indra/llmessage/llassetstorage.h

indra/llmessage/llhttpassetstorage.cpp

indra/llmessage/llhttpassetstorage.h

indra/newview/CMakeLists.txt

indra/newview/llfloatermarketplacelistings.cpp

indra/newview/llfloateroutbox.cpp

indra/newview/llfloatertranslationsettings.cpp

indra/newview/llfloatertranslationsettings.h

indra/newview/llmarketplacefunctions.cpp

indra/newview/llmarketplacefunctions.h

indra/newview/lltranslate.cpp

indra/newview/lltranslate.h

indra/newview/llviewermessage.cpp