Just remove nghttp2 support.

Author: Lukasa

.travis.yml

@@ -9,15 +9,6 @@ python:
   - "3.5"
   - pypy
 
-env:
-  - NGHTTP2=true
-  - NGHTTP2=
-
-matrix:
-  exclude:
-    - env: NGHTTP2=true
-      python: pypy
-
 install:
   - ".travis/install.sh"
 before_script: "flake8 hpack test"

.travis/install.sh

@@ -3,45 +3,6 @@
 set -e
 set -x
 
-if [[ "$NGHTTP2" = true ]]; then
-    # GCC 4.6 seems to cause problems, so go straight to 4.8.
-    sudo add-apt-repository --yes ppa:ubuntu-toolchain-r/test
-    sudo apt-get update
-    sudo apt-get install g++-4.8 libstdc++-4.8-dev
-    export CXX="g++-4.8" CC="gcc-4.8"
-    $CC --version
-
-    # Install nghttp2. Right now I haven't built a PPA for this so we have to
-    # do it from source, which kinda sucks. First, install a ton of
-    # prerequisite packages.
-    sudo apt-get install autoconf automake autotools-dev libtool pkg-config \
-                         zlib1g-dev libcunit1-dev libssl-dev libxml2-dev \
-                         libevent-dev libjansson-dev libjemalloc-dev
-    pip install cython
-
-    # Now, download and install nghttp2's latest version.
-    git clone https://github.com/tatsuhiro-t/nghttp2.git
-    cd nghttp2
-    DIR=`pwd`
-    export PYTHONPATH="$DIR/lib/python${TRAVIS_PYTHON_VERSION}/site-packages"
-    mkdir -p $PYTHONPATH
-    autoreconf -i
-    automake
-    autoconf
-    ./configure --disable-threads --prefix=`pwd`
-    make
-    make install
-
-    # The makefile doesn't install into the active virtualenv. Install again.
-    cd python
-    python setup.py install
-    cd ../..
-
-    # Let's try ldconfig.
-    sudo sh -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/libnghttp2.conf'
-    sudo ldconfig
-fi
-
 pip install .
 pip install -r test_requirements.txt
 pip install flake8

hpack/hpack_compat.py

@@ -8,7 +8,6 @@
 )
 from hpack.struct import HeaderTuple, NeverIndexedHeaderTuple
 import itertools
-import os
 import pytest
 
 from hypothesis import given
@@ -772,19 +771,3 @@ def _prepend_colon(k):
 
         assert expected_special == received_special
         assert expected_boring == received_boring
-
-
-class TestUtilities(object):
-    def test_nghttp2_installs_correctly(self):
-        # This test is a debugging tool: if nghttp2 is being tested by Travis,
-        # we need to confirm it imports correctly. Hyper will normally hide the
-        # import failure, so let's discover it here.
-        # Alternatively, if we are *not* testing with nghttp2, this test should
-        # confirm that it's not available.
-        if os.environ.get('NGHTTP2'):
-            import nghttp2
-        else:
-            with pytest.raises(ImportError):
-                import nghttp2  # noqa
-
-        assert True