small fixes

docs/conf.py

@@ -20,7 +20,6 @@ else:
     import site
     p = site.getsitepackages()[0]
     sys.path.insert(0, p)
-    os.environ[b"CC"] = b"x86_64-linux-gnu-gcc"
 
 # -- Project information -----------------------------------------------------
 

docs/rtd_environment.yml

@@ -15,8 +15,4 @@ dependencies:
   - sphinx
   - sphinx_rtd_theme
   - mock
-  - pillow
-  - pip
-  - pip:
-    - recommonmark
-    - readthedocs-sphinx-ext
\ No newline at end of file
+  - pillow
\ No newline at end of file