input: Write a function to remove all occurrences of a given element from a given array. If the given array is empty, return an empty array.
  def remove_element(arr, element):
      arr = [x for x in arr if x != element]
      return arr
  
  assert remove_element([2, 4, 5, 7, 4, 2], 4) == [2, 5, 7, 2]
  assert remove_element([1, 1, 1, 1, 1], 1) == []
  assert remove_element([3, 6, 9, 12], 10) == [3, 6, 9, 12]
  assert remove_element([], 5) == []
output: def remove_element(arr, element):
      arr = [x for x in arr if x != element]
      return arr