Prune commentary and stale Rust port notes

benches/report_to_touch.py

@@ -38,8 +38,6 @@ LINE_RE = re.compile(
     r"iris input: action=(?P<action>\w+) x=(?P<x>-?[0-9.]+) y=(?P<y>-?[0-9.]+) "
     r"t=(?P<t>[0-9]+)ms history=(?P<hist>[0-9]+)(?P<rest>.*)$"
 )
-# One historical sample inside `rest`: `t:x,y`, space-separated, oldest first
-# -- see `log_input_event`'s own doc for why order matters.
 HIST_RE = re.compile(r"(?P<t>[0-9]+):(?P<x>-?[0-9.]+),(?P<y>-?[0-9.]+)")