remove otolchain

nix builds fail with ``` /tmp/nix-build-katzen-unstable-20240918204645-go-modules.drv-0/source/go.mod:5: unknown directive: toolchain ```
katzenpost · Sep 18, 2024 · 5dbe56c · 5dbe56c
1 parent 2019ee2
commit 5dbe56c
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/go.mod b/go.mod
@@ -2,8 +2,6 @@ module github.com/katzenpost/katzen
 
 go 1.21
 
-toolchain go1.22.6
-
 replace gioui.org => github.com/mixmasala/gio v0.0.0-20240830054638-20227d2a5fc2
 
 require (