[Flatpak SDK] Remove Subversion

https://bugs.webkit.org/show_bug.cgi?id=240903

Patch by Philippe Normand <philn@igalia.com> on 2022-05-25
Reviewed by Adrian Perez de Castro.

* Tools/buildstream/elements/sdk-build-depends/swig.bst: Removed.
* Tools/buildstream/elements/sdk-build-depends/utf8proc.bst: Removed.
* Tools/buildstream/elements/sdk-platform.bst:
* Tools/buildstream/elements/sdk/libsecret.bst: Removed.
* Tools/buildstream/elements/sdk/libserf.bst: Removed.
* Tools/buildstream/elements/sdk/perl-term-readkey.bst: Removed.
* Tools/buildstream/elements/sdk/subversion.bst: Removed.

Canonical link: https://commits.webkit.org/250951@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@294792 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Tools/buildstream/elements/sdk-platform.bst

@@ -43,7 +43,6 @@ depends:
 - sdk/libkate.bst
 - sdk/libmanette.bst
 - sdk/libnotify.bst
-- sdk/libsecret.bst
 - sdk/libsoup3.bst
 - sdk/libusrsctp.bst
 - sdk/libwpe.bst
@@ -52,15 +51,13 @@ depends:
 - sdk/openxr.bst
 - sdk/os-release.bst
 - sdk/patchelf.bst
-- sdk/perl-term-readkey.bst
 - sdk/psmisc.bst
 - sdk/pygls.bst
 - sdk/ruby-json.bst
 - sdk/ruby-highline.bst
 - sdk/ruby-webrick.bst
 - sdk/sccache.bst
 - sdk/sparkle-cdm.bst
-- sdk/subversion.bst
 - sdk/woff2.bst
 - sdk/wpebackend-fdo.bst
 - sdk/x264.bst