Remove overhead from metrics code

indra/newview/lldrawpool.cpp

indra/newview/lldrawpoolalpha.cpp

indra/newview/lldrawpoolavatar.cpp

indra/newview/lldrawpoolbump.cpp

indra/newview/lldrawpoolmaterials.cpp

indra/newview/lldrawpoolsimple.cpp

indra/newview/lldrawpoolsimple.h

indra/newview/lldrawpooltree.cpp

indra/newview/llface.cpp

indra/newview/llviewerjointmesh.cpp

indra/newview/llviewerstats.cpp

indra/newview/llvowlsky.cpp

indra/newview/pipeline.cpp

indra/newview/pipeline.h