python-anyio: drop out-dated hack

community/python-pytest-mock is updated! [1]

[1] https://github.com/archlinux/svntogit-community/commit/bd4893695e7ed561a45505b8b892d230147e5b90

PKGBUILD

@@ -25,12 +25,6 @@ export SETUPTOOLS_SCM_PRETEND_VERSION=$pkgver
 
 prepare() {
   cd anyio-$pkgver
-  # pytest-mock 3.3 comes with an API change [1], and anyio uses the new API,
-  # while python-pytest-mock in Arch is out-dated. Patch the sources to use
-  # the old API.
-  # [1] https://github.com/pytest-dev/pytest-mock/issues/202
-  sed -i 's#MockerFixture#MockFixture#' tests/test_eventloop.py
-
   # Work around https://bugs.python.org/issue45097
   patch -Np1 -i ../bpo-45097.diff
 }