Remove get_html_theme_path().

Author: dajiaji

docs/conf.py

@@ -13,7 +13,6 @@
 # import os
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
-import sphinx_rtd_theme
 
 from cwt import __version__ as python_cwt_version
 
@@ -69,7 +68,6 @@
 # a list of builtin themes.
 #
 html_theme = "sphinx_rtd_theme"
-html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,