Remove custom byte-compiling support

This is now supported in upstream Meson 1.2. While this is a significant
bump in the build requirement, distributions that really want the byte
compiling can easily back out this patch, and also we're not exactly
moving quickly towards a stable release of this branch.

meson.build

@@ -1,7 +1,7 @@
 project(
   'meld',
   version: '3.22.0',
-  meson_version: '>= 0.59.0',
+  meson_version: '>= 1.2.0',
 )
 
 python = import('python')
@@ -59,8 +59,3 @@ gnome.post_install(
   gtk_update_icon_cache: true,
   update_desktop_database: true,
 )
-
-meson.add_install_script(
-  'meson_post_install.py',
-  get_option('byte-compile') ? python3.get_install_dir() : '',
-)

meson_options.txt

@@ -4,9 +4,3 @@ option(
   choices: ['', 'Devel'],
   description: 'Build with specified application ID',
 )
-option(
-  'byte-compile',
-  type: 'boolean',
-  value: true,
-  description: 'Byte-compile installed Python source files',
-)