gnu: cairo: Make some cosmetic changes.

* gnu/packages/patches/cairo-CVE-2018-19876.patch,
gnu/packages/patches/cairo-CVE-2020-35492.patch: Remove patches.
* gnu/local.mk (dist_patch_DATA): Unregister them.
* gnu/packages/gtk.scm (cairo): Make some cosmetic changes.
[replacement]: Remove.
(cairo/fixed): Remove.

Signed-off-by: Léo Le Bouter <lle-bout@zaclys.net>

2 files changed, 0 insertions, 86 deletions

diff --git a/gnu/packages/patches/cairo-CVE-2018-19876.patch b/gnu/packages/patches/cairo-CVE-2018-19876.patch
deleted file mode 100644
index c0fba2ecaa..0000000000
--- a/gnu/packages/patches/cairo-CVE-2018-19876.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-Copied from Debian.
-
-From: Carlos Garcia Campos <cgarcia@igalia.com>
-Date: Mon, 19 Nov 2018 12:33:07 +0100
-Subject: ft: Use FT_Done_MM_Var instead of free when available in
- cairo_ft_apply_variations
-
-Fixes a crash when using freetype >= 2.9
-
-[This is considered to be security-sensitive because WebKitGTK+ sets its
-own memory allocator, which is not compatible with system free(), making
-this a remotely triggerable denial of service or memory corruption.]
-
-Origin: upstream, commit:90e85c2493fdfa3551f202ff10282463f1e36645
-Bug: https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5
-Bug-Debian: https://bugs.debian.org/916389
-Bug-CVE: CVE-2018-19876
----
- src/cairo-ft-font.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-diff --git a/src/cairo-ft-font.c b/src/cairo-ft-font.c
-index 325dd61..981973f 100644
---- a/src/cairo-ft-font.c
-+++ b/src/cairo-ft-font.c
-@@ -2393,7 +2393,11 @@ skip:
- done:
-         free (coords);
-         free (current_coords);
-+#if HAVE_FT_DONE_MM_VAR
-+        FT_Done_MM_Var (face->glyph->library, ft_mm_var);
-+#else
-         free (ft_mm_var);
-+#endif
-     }
- }
- 
diff --git a/gnu/packages/patches/cairo-CVE-2020-35492.patch b/gnu/packages/patches/cairo-CVE-2020-35492.patch
deleted file mode 100644
index e8b90fa5c5..0000000000
--- a/gnu/packages/patches/cairo-CVE-2020-35492.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-Copied from Debian.
-
-From 03a820b173ed1fdef6ff14b4468f5dbc02ff59be Mon Sep 17 00:00:00 2001
-From: Heiko Lewin <heiko.lewin@worldiety.de>
-Date: Tue, 15 Dec 2020 16:48:19 +0100
-Subject: [PATCH] Fix mask usage in image-compositor
-
-[trimmed test case, since not used in Debian build]
-
----
- src/cairo-image-compositor.c                |   8 ++--
-
---- cairo-1.16.0.orig/src/cairo-image-compositor.c
-+++ cairo-1.16.0/src/cairo-image-compositor.c
-@@ -2601,14 +2601,14 @@ _inplace_src_spans (void *abstract_rende
- 		    unsigned num_spans)
- {
-     cairo_image_span_renderer_t *r = abstract_renderer;
--    uint8_t *m;
-+    uint8_t *m, *base = (uint8_t*)pixman_image_get_data(r->mask);
-     int x0;
- 
-     if (num_spans == 0)
- 	return CAIRO_STATUS_SUCCESS;
- 
-     x0 = spans[0].x;
--    m = r->_buf;
-+    m = base;
-     do {
- 	int len = spans[1].x - spans[0].x;
- 	if (len >= r->u.composite.run_length && spans[0].coverage == 0xff) {
-@@ -2646,7 +2646,7 @@ _inplace_src_spans (void *abstract_rende
- 				      spans[0].x, y,
- 				      spans[1].x - spans[0].x, h);
- 
--	    m = r->_buf;
-+	    m = base;
- 	    x0 = spans[1].x;
- 	} else if (spans[0].coverage == 0x0) {
- 	    if (spans[0].x != x0) {
-@@ -2675,7 +2675,7 @@ _inplace_src_spans (void *abstract_rende
- #endif
- 	    }
- 
--	    m = r->_buf;
-+	    m = base;
- 	    x0 = spans[1].x;
- 	} else {
- 	    *m++ = spans[0].coverage;