Remove pyqt5 explicit version

appveyor.yml

@@ -36,7 +36,7 @@ install:
   #- choco install -y vcredist2015
   - "%CMD_IN_ENV% conda config --set always_yes yes --set changeps1 no"
   - "%CMD_IN_ENV% conda config --add channels inso/channel/sakia"
-  - "%CMD_IN_ENV% conda create -q -n test-environment python=%PYTHON_VERSION% pyqt5=5.6 libsodium=1.0.3 setuptools=19.2"
+  - "%CMD_IN_ENV% conda create -q -n test-environment python=%PYTHON_VERSION% libsodium=1.0.3 setuptools=19.2"
 
 build_script:
   - ".\\ci\\appveyor\\build.cmd"

ci/travis/build.sh

@@ -12,7 +12,6 @@ pyenv rehash
 pip install coveralls
 pip install pytest-cov
 pip install pyinstaller==3.2
-pip install PyQt5==5.8.2
 pip install -r requirements.txt
 if [ $TRAVIS_OS_NAME == "linux" ]
 then