docs: fix building rtfd (#379)

Author: Borda

requirements/_docs.txt

@@ -6,8 +6,8 @@ pandoc >=1.0
 docutils >=0.16
 # https://github.com/jupyterlab/jupyterlab_pygments/issues/5
 pygments >=2.4.1
-sphinxcontrib-fulltoc >=1.0
-sphinxcontrib-mockautodoc
+#sphinxcontrib-fulltoc >=1.0
+#sphinxcontrib-mockautodoc
 
 pt-lightning-sphinx-theme @ https://github.com/Lightning-AI/lightning_sphinx_theme/archive/master.zip
 sphinx-autodoc-typehints >=1.0