Fix RTD theme

Author: virtuald

docs/conf.py

@@ -67,14 +67,7 @@
 pygments_style = "sphinx"
 
 # -- Options for HTML output ----------------------------------------------
-
-if not on_rtd:  # only import and set the theme if we're building docs locally
-    import sphinx_rtd_theme
-
-    html_theme = "sphinx_rtd_theme"
-    html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
-else:
-    html_theme = "default"
+html_theme = "sphinx_rtd_theme"
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = "sphinxdoc"