Simplify setup.py according to bobfang1992#2

.github/workflows/wheels.yml

@@ -26,9 +26,8 @@ jobs:
       run: |
         python -m pip install cibuildwheel==1.4.2
 
-    - name: Build wheel
+    - name: Build wheels
       env:
-        CIBW_BEFORE_BUILD: pip install cmake
         # Skip building on Python 2.7 on all platforms
         # Additionally, skip 32-bit Windows for now as MSVC needs seperate setup with different toolchain to do this
         # Refer: https://cibuildwheel.readthedocs.io/en/stable/cpp_standards/#windows-and-python-27

MANIFEST.in

@@ -1,6 +1,2 @@
-include cmake/*
-include include/*
-include src/*
-include CMakeLists.txt
 include LICENSE
 include VERSION