def removeHostmask(self, hostmask):
        self.hostmasks.remove(hostmask)
Handle the 'splitterMoved' signal from the QSplitter.
dataset/ETHPy150Open ProgVal/Limnoria/src/ircdb.py/IrcUser.removeHostmask--crossover with--dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/qt/qt_splitter.py/QtSplitter.on_win32_splitter_moved