parsers: drop spurious check of readlen value
We're about to check if len < 40 after assigning readlen to len, which
means that if len < 40 we'll still abort, but I'm about to add a
sensible exception to that failure, so let's just discard this useless
check.
from mercurial import util
def makedate():
return 0, 0
def getuser():
return 'bob'
# mock the date and user apis so the output is always the same
def uisetup(ui):
util.makedate = makedate
util.getuser = getuser