python3Packages.bpython: remove no longer relevant patch

pkgs/development/python-modules/bpython/clipboard-make-which-substitutable.patch

@@ -1,27 +0,0 @@
-From 6f544a5bd43446859754cb80e012af933b843db9 Mon Sep 17 00:00:00 2001
-From: Florian Klink <flokli@flokli.de>
-Date: Wed, 3 Jun 2020 22:05:34 +0200
-Subject: [PATCH] clipboard: make which substitutable
-
-This is used to detect the presence of xclip and other clipboard
-handling tools.
----
- bpython/clipboard.py | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/bpython/clipboard.py b/bpython/clipboard.py
-index aee429b..f346429 100644
---- a/bpython/clipboard.py
-+++ b/bpython/clipboard.py
-@@ -58,7 +58,7 @@ class OSXClipboard(object):
- 
- def command_exists(command):
-     process = subprocess.Popen(
--        ["which", command], stderr=subprocess.STDOUT, stdout=subprocess.PIPE
-+        ["@which@", command], stderr=subprocess.STDOUT, stdout=subprocess.PIPE
-     )
-     process.communicate()
- 
--- 
-2.26.2
-

pkgs/development/python-modules/bpython/default.nix

@@ -22,11 +22,6 @@ buildPythonPackage rec {
     sha256 = "1fb1e0a52332579fc4e3dcf75e21796af67aae2be460179ecfcce9530a49a200";
   };
 
-  patches = [ (substituteAll {
-    src = ./clipboard-make-which-substitutable.patch;
-    which = "${which}/bin/which";
-  })];
-
   propagatedBuildInputs = [
     curtsies
     greenlet