fix linux version with shapely 1.7.0

.github/workflows/build.yml

@@ -46,11 +46,6 @@ jobs:
           wget -q https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-16.04/wxPython-4.0.6-cp27-cp27mu-linux_x86_64.whl
           python -m pip install wxPython*.whl
 
-          # We can't use the shapely wheel because it includes the geos
-          # library but with a weird file name.  Details:
-          # https://github.com/pyinstaller/pyinstaller/blob/61b1c75c2b0469b32d114298a63bf60b8d597e37/PyInstaller/hooks/hook-shapely.py#L34
-          python -m pip install --no-binary shapely -r requirements.txt
-
           python -m pip install PyGObject
 
           python -m pip install -r requirements.txt

requirements.txt

@@ -2,7 +2,7 @@
 backports.functools_lru_cache
 wxPython==4.0.6
 networkx==2.2
-shapely==1.6.3
+shapely
 lxml
 appdirs
 numpy<1.16.0