Revert "[Doc] Add Algolia search to docs (#46477)"

This reverts commit 80e832c.

doc/requirements-doc.txt

@@ -7,7 +7,7 @@ setuptools>=70.0.0
 Pygments==2.16.1
 
 # Sphinx
-sphinx==7.3.7
+sphinx==7.1.2
 sphinx-click==5.1.0
 sphinx-copybutton==0.5.2
 sphinxemoji==0.2.0
@@ -20,7 +20,6 @@ sphinx-autobuild==2024.4.16
 pydata-sphinx-theme==0.14.1
 autodoc_pydantic==2.2.0
 appnope
-sphinx-docsearch==0.0.7
 
 pydantic!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,<3
 

doc/source/conf.py

@@ -70,14 +70,8 @@
     "sphinx_remove_toctrees",
     "sphinx_design",
     "sphinx.ext.intersphinx",
-    "sphinx_docsearch",
 ]
 
-# Configuration for algolia
-docsearch_app_id = "LBHF0PABBL"
-docsearch_api_key = "6c42f30d9669d8e42f6fc92f44028596"
-docsearch_index_name = "docs-ray"
-
 remove_from_toctrees = [
     "cluster/running-applications/job-submission/doc/*",
     "ray-observability/reference/doc/*",