Do not try to install software when creating docs

It is not necessary (at least not for now) to build and install the software in order to generate the documentation.

.readthedocs.yaml

@@ -14,7 +14,7 @@ build:
     # rust: "1.70"
     # golang: "1.20"
 
-# Build documentation in the "doc/source" directory with Sphinx
+# Build documentation in the "docs/" directory with Sphinx
 sphinx:
   configuration: doc/source/conf.py
   # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs
@@ -30,9 +30,6 @@ sphinx:
 # Optional but recommended, declare the Python requirements required
 # to build your documentation
 # See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
-python:
-  install:
-    - requirements: doc/requirements.txt
-    # PyBDSF itself needs to be installed to generate the documentation.
-    - method: pip
-      path: .
+# python:
+#   install:
+#     - requirements: docs/requirements.txt