🩹Fix local tox -e docs (#725)

Author: lord-haffi

docs/conf.py

@@ -49,14 +49,12 @@
 
 try:
     import sphinx
-    from pkg_resources import parse_version
 
     cmd_line_template = "sphinx-apidoc -f -o {outputdir} {moduledir}"
     cmd_line = cmd_line_template.format(outputdir=output_dir, moduledir=module_dir)
 
     args = cmd_line.split(" ")
-    if parse_version(sphinx.__version__) >= parse_version("1.7"):
-        args = args[1:]
+    args = args[1:]
 
     apidoc.main(args)
 except Exception as e: