remove graphics/imlib2-heic

Newer versions of imlib2 already have a loader for heic, making
imlib2-heic redundant. Furthermore, the loader API changed and
imlib2-heic can't work, breaking the support for the image format.

ok to remove it? (cvs rm omitted for brevity)

Index: Makefile
===================================================================
RCS file: /home/cvs/ports/devel/quirks/Makefile,v
retrieving revision 1.1508
diff -u -p -r1.1508 Makefile
--- Makefile 22 Apr 2023 16:33:54 -0000 1.1508
+++ Makefile 28 Apr 2023 20:53:58 -0000
@@ -3,7 +3,7 @@ CATEGORIES = devel databases
DISTFILES =

# API.rev
-PKGNAME = quirks-6.124
+PKGNAME = quirks-6.125
PKG_ARCH = *
MAINTAINER = Marc Espie <espie@openbsd.org>

Index: files/Quirks.pm
===================================================================
RCS file: /home/cvs/ports/devel/quirks/files/Quirks.pm,v
retrieving revision 1.1519
diff -u -p -r1.1519 Quirks.pm
--- files/Quirks.pm 22 Apr 2023 16:33:54 -0000 1.1519
+++ files/Quirks.pm 28 Apr 2023 20:58:26 -0000
@@ -1820,6 +1820,7 @@ setup_obsolete_reason(
# 7.4
53 => 'compton',
54 => 'depotdownloader',
+ 1 => 'imlib2-heic',
);

# though it's not yet used, these should be pkgnames, so that eventually