ci: cleanup docs build

Author: paulmueller

docs/conf.py

@@ -21,9 +21,7 @@
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
 
-# Get version number from PyCorrFit._version file
-import mock
-import os
+from unittest import mock
 import os.path as op
 import sys
 # include parent directory
@@ -94,7 +92,7 @@
 # 
 # The full version, including alpha/beta/rc tags.
 # This gets 'version'
-exec(open(op.join(pdir, "pycorrfit/_version.py")).read())
+from pycorfit import __version__ as version
 release = version #@UndefinedVariable
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/requirements.txt

@@ -1,5 +1,3 @@
-mock
-sphinx==4.3.0
-sphinxcontrib.bibtex>=2.0
-sphinx_rtd_theme==1.0
-
+sphinx
+sphinxcontrib.bibtex
+sphinx_rtd_theme