Relicense under the ISC license

plugins/examples/gain/Cargo.toml

@@ -2,7 +2,7 @@
 name = "gain"
 version = "0.1.0"
 edition = "2021"
-license = "GPL-3.0-or-later"
+license = "ISC"
 
 [lib]
 crate-type = ["cdylib"]

plugins/examples/gain/src/lib.rs

@@ -1,19 +1,3 @@
-// nih-plug: plugins, but rewritten in Rust
-// Copyright (C) 2022 Robbert van der Helm
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
 #[macro_use]
 extern crate nih_plug;