Remove old patch.

0001-TEST-Skip-test_to_parquet_with_get-if-no-parquet-lib.patch

@@ -1,28 +0,0 @@
-From 4aef310e810cf1d748bc1e612f356c654b64b54e Mon Sep 17 00:00:00 2001
-From: Scott Sanderson <scoutoss@gmail.com>
-Date: Sat, 9 May 2020 12:20:39 -0400
-Subject: [PATCH] TEST: Skip test_to_parquet_with_get if no parquet libs
- available (#6188)
-
-Co-authored-by: Scott Sanderson <ssanderson@quantopian.com>
-Signed-off-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>
----
- dask/dataframe/io/tests/test_parquet.py | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/dask/dataframe/io/tests/test_parquet.py b/dask/dataframe/io/tests/test_parquet.py
-index c4dd8a9c..a902996e 100644
---- a/dask/dataframe/io/tests/test_parquet.py
-+++ b/dask/dataframe/io/tests/test_parquet.py
-@@ -1738,6 +1738,8 @@ def test_writing_parquet_with_unknown_kwargs(tmpdir, engine):
- 
- 
- def test_to_parquet_with_get(tmpdir):
-+    check_engine()
-+
-     from dask.multiprocessing import get as mp_get
- 
-     tmpdir = str(tmpdir)
--- 
-2.21.1
-