Drop unused patch

python-pillow_sphinx-issues.patch

@@ -1,11 +0,0 @@
-diff -rupN --no-dereference Pillow-8.3.1/docs/conf.py Pillow-8.3.1-new/docs/conf.py
---- Pillow-8.3.1/docs/conf.py	2021-07-06 16:05:28.000000000 +0200
-+++ Pillow-8.3.1-new/docs/conf.py	2021-07-07 10:44:44.716870622 +0200
-@@ -30,7 +30,6 @@ needs_sphinx = "2.4"
- # ones.
- extensions = [
-     "sphinx_copybutton",
--    "sphinx_issues",
-     "sphinx_removed_in",
-     "sphinx.ext.autodoc",
-     "sphinx.ext.intersphinx",