py-gitpython: update to 2.1.8

remove integrated patch

python/py-gitpython/Portfile

@@ -3,9 +3,8 @@ PortSystem        1.0
 PortGroup         python 1.0
 PortGroup         github 1.0
 
-github.setup      gitpython-developers GitPython 2.1.7
+github.setup      gitpython-developers GitPython 2.1.8
 name              py-gitpython
-revision          1
 
 platforms         darwin
 license           BSD
@@ -16,11 +15,8 @@ long_description  GitPython provides object model access to your git \
                   repository. Once you have created a repository object, you \
                   can traverse it to find parent commit(s), trees, blobs, etc.
 
-checksums           rmd160  c5b11465a73231b08c9296e241dcd52634677b6f \
-                    sha256  3b5d4ef0ddefb62302c1930b7910eeb9b215729c6f80db02a90aada00b18c9ef
-
-patch.pre_args      -p1
-patchfiles          patch-peeled.diff
+checksums           rmd160  c179bd338c7a37bb193f0ab4638596f606ab348a \
+                    sha256  57039d0a0f65f53b398e03ad5e33fa29af4a402b8df46e7d5af91ab2b24eddc1
 
 python.versions     27 36
 

python/py-gitpython/files/patch-peeled.diff

@@ -1,22 +0,0 @@
-# https://github.com/gitpython-developers/GitPython/pull/689
-diff --git a/git/refs/symbolic.py b/git/refs/symbolic.py
-index bef6ba3c..8efeafc5 100644
---- a/git/refs/symbolic.py
-+++ b/git/refs/symbolic.py
-@@ -96,7 +96,15 @@ def _iter_packed_refs(cls, repo):
-                     if not line:
-                         continue
-                     if line.startswith('#'):
--                        if line.startswith('# pack-refs with:') and not line.endswith('peeled'):
-+                        # "# pack-refs with: peeled fully-peeled sorted"
-+                        # the git source code shows "peeled",
-+                        # "fully-peeled" and "sorted" as the keywords
-+                        # that can go on this line, as per comments in git file
-+                        # refs/packed-backend.c
-+                        # I looked at master on 2017-10-11,
-+                        # commit 111ef79afe, after tag v2.15.0-rc1
-+                        # from repo https://github.com/git/git.git
-+                        if line.startswith('# pack-refs with:') and 'peeled' not in line:
-                             raise TypeError("PackingType of packed-Refs not understood: %r" % line)
-                         # END abort if we do not understand the packing scheme
-                         continue