changed duplicate test assertions from assertTrue to assertFalse after reviewing logic of DupChecker.press_on() and the test cases in DupcheckerWithFixturesTest.setUp(). also removed unneeded call to setUp() again.
changed duplicate test assertions from assertTrue to assertFalse after reviewing logic of DupChecker.press_on() and the test cases in DupcheckerWithFixturesTest.setUp(). also removed unneeded call to setUp() again.

brianwc/courtlistener,brianwc/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,Andr3iC/courtlistener,voutilad/courtlistener,voutilad/courtlistener,voutilad/courtlistener,brianwc/courtlistener,brianwc/courtlistener,voutilad/courtlistener,Andr3iC/courtlistener,Andr3iC/courtlistener,brianwc/courtlistener,Andr3iC/courtlistener