[interpolatable] Remove use of perimeter again

Snippets/interpolatable.py

@@ -9,7 +9,6 @@ from __future__ import print_function, division, absolute_import
 from fontTools.misc.py23 import *
 
 from fontTools.pens.basePen import BasePen
-from fontTools.pens.perimeterPen import PerimeterPen
 from fontTools.pens.statisticsPen import StatisticsPen
 import itertools
 
@@ -175,12 +174,9 @@ def test(glyphsets, glyphs=None, names=None):
 				allVectors.append(contourVectors)
 				for contour in contourPens:
 					stats = StatisticsPen(glyphset=glyphset)
-					perim = PerimeterPen(glyphset=glyphset)
-					tee = TeePen([stats, perim])
-					contour.draw(tee)
+					contour.draw(stats)
 					size = abs(stats.area) ** .5 * .5
 					vector = (
-						int(perim.value),
 						int(size),
 						int(stats.meanX),
 						int(stats.meanY),