Remove zipfile36 dependency

poetry/masonry/builders/wheel.py

@@ -7,11 +7,7 @@ import re
 import tempfile
 import shutil
 import stat
-
-try:
-    import zipfile36 as zipfile
-except ImportError:
-    import zipfile
+import zipfile
 
 from base64 import urlsafe_b64encode
 from io import StringIO

pyproject.toml

@@ -33,9 +33,7 @@ jsonschema = "^2.6"
 pyrsistent = "^0.14.2"
 pyparsing = "^2.2"
 cachecontrol = { version = "^0.12.4", extras = ["filecache"] }
-
-# zipfile36 is needed for Python 3.4 and 3.5
-zipfile36 = { version = "^0.1", python = ">=3.4 <3.6" }
+pkginfo = "^1.4"
 
 # The typing module is not in the stdlib in Python 2.7 and 3.4
 typing = { version = "^3.6", python = "~2.7 || ~3.4" }
@@ -44,8 +42,6 @@ typing = { version = "^3.6", python = "~2.7 || ~3.4" }
 pathlib2 = { version = "^2.3", python = "~2.7" }
 virtualenv = { version = "^15.2", python = "~2.7" }
 
-pkginfo = "^1.4"
-
 [tool.poetry.dev-dependencies]
 pytest = "^3.4"
 pytest-cov = "^2.5"