pure python no modules version, or no list comp version ( simpler to understand ?)
>>> x = [1, 1, 1, 1, 1, 1, 2, 3, 2]
>>> for item in xrange(x.count(1)):
...     x.remove(1)
...
>>>
>>> x
[2, 3, 2]
can be made into a def pretty easily also
def removeThis(li,this):
    for item in xrange(li.count(this)):
           li.remove(this)
    return li