Revert "apparmor: Allow version-specific bits in profiles"

This reverts commit 19eb8abc9a.

There is no longer any need to dynamically generate version specific
rules. This revert can be reverted, if the need ever arises again
in the future.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

src/security/apparmor/meson.build

@@ -14,41 +14,9 @@ apparmor_gen_profiles_conf = configuration_data({
 
 apparmor_dir = sysconfdir / 'apparmor.d'
 
-# Our profiles use some features that only work well on AppArmor 3.x,
-# specifically the 'include if exists' directive. In order to keep
-# supporting AppArmor 2.x, the bits that are version-specific are
-# enclosed in special markers and we decide which ones to include
-# based on the AppArmor version detected on the host.
-#
-# TODO: drop the additional complexity once we no longer target
-#       distros that ship AppArmor 2.x (Debian 11, Ubuntu 20.04)
-if conf.has('WITH_APPARMOR_3')
-  apparmor_gen_cmd = [
-    'sed',
-    '-e', '/[@]BEGIN_APPARMOR_3[@]/d',
-    '-e', '/[@]END_APPARMOR_3[@]/d',
-    '-e', '/[@]BEGIN_APPARMOR_2[@]/,/[@]END_APPARMOR_2[@]/d',
-    '@INPUT@'
-  ]
-else
-  apparmor_gen_cmd = [
-    'sed',
-    '-e', '/[@]BEGIN_APPARMOR_3[@]/,/[@]END_APPARMOR_3[@]/d',
-    '-e', '/[@]BEGIN_APPARMOR_2[@]/d',
-    '-e', '/[@]END_APPARMOR_2[@]/d',
-    '@INPUT@'
-  ]
-endif
-
 foreach name : apparmor_gen_profiles
-  tmp = configure_file(
-    input: '@0@.in'.format(name),
-    output: '@0@.tmp'.format(name),
-    command: apparmor_gen_cmd,
-    capture: true,
-  )
   configure_file(
-    input: tmp,
+    input: '@0@.in'.format(name),
     output: name,
     configuration: apparmor_gen_profiles_conf,
     install: true,