[gnote] Remove contrast

[Aurimas Černius <aurimasc src gnome org>]

commit a9bcefd131c1b911558f3bdd13b541c23d602ac4
Author: Aurimas Černius <aurisc4 gmail com>
Date:   Sun May 9 20:58:01 2021 +0300

    Remove contrast

 README.contrast  |  52 -----------
 src/contrast.cpp | 263 -------------------------------------------------------
 src/contrast.hpp |  69 ---------------
 src/meson.build  |   1 -
 4 files changed, 385 deletions(-)
---
diff --git a/src/meson.build b/src/meson.build
index 0f556422..d9fafe0a 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -24,7 +24,6 @@ libgnote_sources = [
   'addinmanager.cpp',
   'addinpreferencefactory.cpp',
   'applicationaddin.cpp',
-  'contrast.cpp',
   'debug.cpp',
   'iactionmanager.cpp',
   'iconmanager.cpp',