SQ: fix sizes.c
build: drop -Os

known to tickle gcc bugs, and of dubious value
SQ: src/Makefile - clean up profiling support
SQ: src/hal/lib/Submakefile - clean up profiling support
SQ: src/machinetalk/lib/Submakefile - clean up profiling support
SQ: src/machinetalk/webtalk/Submakefile - clean up profiling support
SQ: src/machinetalk/lib/Submakefile - clean up profiling support
emc/sai: dummy canon layer nullcanon.cc - for interpreter profiling

to cut out any canon overhead from profiling