doc: Temp revert of new theme

Temporarily revert new theme
as doc are not rendered in the Techdocs.

Signed-off-by: divya pillai <divya.pillai@nordicsemi.no>

Author: divipillai

doc/conf.py

@@ -38,11 +38,6 @@
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
 html_theme = 'sphinx_ncs_theme'
-html_show_sphinx = False
-
-html_theme_options = {'docsets': {},"addons_url": "https://nrfconnect.github.io/ncs-app-index/","bare_metal_url": "","ncs_url": "https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/index.html", "ncs_label": "nRF Connect SDK Docs", "logo_url": "https://docs.nordicsemi.com"}
-
-html_extra_path = ['versions.json']
 
 ## -- Options for Breathe ----------------------------------------------------
 # https://breathe.readthedocs.io/en/latest/index.html

doc/requirements.txt

@@ -1,6 +1,6 @@
 Sphinx==5.3.0
 breathe==4.35.0
-sphinx-ncs-theme<2.1
+sphinx-ncs-theme==0.7.4
 sphinx-tabs>=3.4
 sphinx-togglebutton>=0.3.2
 Pillow>=9.0.1