largefiles: drop a redundant check for patterns when removing without --after
This is in the way of passing a matcher to removelargefiles(). This method is
called in exactly two places- first in overrides.addremove() (but only if the
pattern list passed to it is not empty), and second in the commands.remove()
override. But since the latter calls commands.remove() first, which also does
this check, it isn't needed here.
running: init test1
result: None
running: add foo
result: 0
running: commit -m commit1 -d 2000-01-01 foo
result: None
running: commit -m commit2 -d 2000-01-02 foo
result: None
running: log -r 0
changeset: 0:0e4634943879
user: test
date: Sat Jan 01 00:00:00 2000 +0000
summary: commit1
result: None
running: log -r tip
changeset: 1:45589e459b2e
tag: tip
user: test
date: Sun Jan 02 00:00:00 2000 +0000
summary: commit2
result: None