remove data trim routine
remove data trim routine

the per-metric routines are expensive.
also we don't actually need to trim data like this

OOM-Killer/metrictank,raintank/raintank-metric,OOM-Killer/metrictank,replay/metrictank,replay/metrictank,raintank/raintank-metric,raintank/metrictank,OOM-Killer/metrictank,replay/metrictank,raintank/metrictank,raintank/metrictank,raintank/metrictank,replay/metrictank,raintank/raintank-metric