Removing deprecated options due to latest version of Sphinx.

Signed-off-by: Leander Stephen D'Souza <leanderdsouza1234@gmail.com>

Author: leander-dsouza

conf.py

@@ -119,12 +119,10 @@
     sys.stderr.write('Warning: sphinx_rtd_theme missing. Use pip to install it.\n')
 else:
     html_theme = "sphinx_rtd_theme"
-    html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
     html_theme_options = {
         'canonical_url': '',
         'analytics_id': 'G-EVD5Z6G6NH',
         'logo_only': False,
-        'display_version': True,
         'prev_next_buttons_location': 'None',
         # Toc options
         'collapse_navigation': False,