fix bumpversion

Author: gonzalocasas

.bumpversion.cfg

@@ -4,10 +4,6 @@ message = Bump version to {new_version}
 commit = True
 tag = True
 
-[bumpversion:file:docs/conf.py]
-search = version = release = "{current_version}"
-replace = version = release = "{new_version}"
-
 [bumpversion:file:docs/getting_started.rst]
 search = {current_version}
 replace = {new_version}