contrib: libass: remove macos fontconfig fix

fontconfig is not used in any darwin libass builds since 8a922414.

contrib/src/ass/ass-macosx.patch

-From e20ef56993823cfdbf29825a686e7632285111c6 Mon Sep 17 00:00:00 2001
-From: Naohiro Koriyama <nkoriyama@gmail.com>
-Date: Wed, 29 Aug 2012 16:44:16 +0200
-Subject: [PATCH] added fontconfig font search paths for OS X.
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-On OS X, fontconfig searches font only from /System/Library/Fonts, so this patch adds more search paths to its initialization.
-
-Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>
----
- libass/ass_fontconfig.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/libass/ass_fontconfig.c b/libass/ass_fontconfig.c
-index fd6ea33..10a17ed 100644
---- a/libass/ass_fontconfig.c
-+++ b/libass/ass_fontconfig.c
-@@ -336,6 +336,9 @@ ass_fontconfig_add_provider(ASS_Library *lib, ASS_FontSelector *selector,
-                 "file found, using fallback.");
-         FcConfigDestroy(fc->config);
-         fc->config = FcInitLoadConfig();
-+        FcConfigAppFontAddDir(fc->config, "~/Library/Fonts");
-+        FcConfigAppFontAddDir(fc->config, "/Library/Fonts");
-+        FcConfigAppFontAddDir(fc->config, "/Network/Library/Fonts");
-     }
-     if (fc->config)
-         rc = FcConfigBuildFonts(fc->config);
--- 
-2.27.0.windows.1
-

contrib/src/ass/rules.mak

@@ -36,7 +36,6 @@ $(TARBALLS)/libass-$(ASS_VERSION).tar.gz:
 
 libass: libass-$(ASS_VERSION).tar.gz .sum-ass
 	$(UNPACK)
-	$(APPLY) $(SRC)/ass/ass-macosx.patch
 	$(MOVE)
 
 DEPS_ass = freetype2 $(DEPS_freetype2) fribidi iconv $(DEPS_iconv)