Refactor triangle_area function to remove unnecessary code

area.py

@@ -13,6 +13,4 @@ def circle_area(radius):
 def triangle_area(base, height):
  if base < 0 or height < 0:
  raise ValueError('Base and height must be positive numbers')
- return 0.5 * base * height
-
-def
+ return 0.5 * base * height