dev-python/parver: remove unused patch

Signed-off-by: Michael Mair-Keimberger <m.mairkeimberger@gmail.com>
Signed-off-by: Aaron Bauman <bman@gentoo.org>

dev-python/parver/files/parver-0.2.1-gentoo-versioning.patch

@@ -1,29 +0,0 @@
-diff --git a/setup.py b/setup.py
-index c5c2492..8f5c8c7 100644
---- a/setup.py
-+++ b/setup.py
-@@ -18,9 +18,9 @@ LONG_DESC = open('README.rst', encoding='utf-8').read()
- 
- extras_require = {
-     'test': [
--        'pytest ~= 3.5',
--        'hypothesis ~= 3.56',
--        'pretend ~= 1.0',
-+        'pytest >= 3.5',
-+        'hypothesis >= 3.56',
-+        'pretend >= 1.0',
-     ],
-     'docstest': [
-         'doc8',
-@@ -49,9 +49,9 @@ setup(
-     packages=find_packages('src'),
-     package_dir={'': 'src'},
-     install_requires=[
--        'arpeggio ~= 1.7',
-+        'arpeggio >= 1.7',
-         'attrs >= 17.4.0',
--        'six ~= 1.9',
-+        'six >= 1.9',
-     ],
-     extras_require=extras_require,
-     python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',