Drop local patch to disable Algol detection

There has been some rework upstream, let's see how it goes.

debian/patches/local.disable-algol68-detection.patch

@@ -1,34 +0,0 @@
-Subject: Disable detection of Algol68 files
-Author: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
-Date: 2016-12-13
-Forwarded: http://mx.gw.com/pipermail/file/2016/002174.html (defunct)
-
---- a/magic/Magdir/algol68
-+++ b/magic/Magdir/algol68
-@@ -3,16 +3,16 @@
- # $File: algol68,v 1.3 2018/10/19 01:04:21 christos Exp $
- # algol68:  file(1) magic for Algol 68 source
- #
--0	search/8192	(input,			Algol 68 source text
--!:mime	text/x-Algol68
--0	regex/1024	\^PROC			Algol 68 source text
--!:mime	text/x-Algol68
--0	regex/1024	\bMODE[\t\ ]		Algol 68 source text
--!:mime	text/x-Algol68
--0	regex/1024	\bREF[\t\ ]		Algol 68 source text
--!:mime	text/x-Algol68
--0	regex/1024	\bFLEX[\t\ ]\*\\[	Algol 68 source text
--!:mime	text/x-Algol68
-+#0	search/8192	(input,			Algol 68 source text
-+#!:mime	text/x-Algol68
-+#0	regex/1024	\^PROC			Algol 68 source text
-+#!:mime	text/x-Algol68
-+#0	regex/1024	\bMODE[\t\ ]		Algol 68 source text
-+#!:mime	text/x-Algol68
-+#0	regex/1024	\bREF[\t\ ]		Algol 68 source text
-+#!:mime	text/x-Algol68
-+#0	regex/1024	\bFLEX[\t\ ]\*\\[	Algol 68 source text
-+#!:mime	text/x-Algol68
- #0	regex          	[\t\ ]OD		Algol 68 source text
- #!:mime	text/x-Algol68
- #0	regex          	[\t\ ]FI		Algol 68 source text

debian/patches/series

@@ -9,6 +9,5 @@ upstream.disable.att3b.patch
 local.support-local-definitions-in-etc-magic.patch
 local.don-t-include-libs-in-build.patch
 local.mention-posixly-correct-dependent-behaviour-in-usage-message.patch
-local.disable-algol68-detection.patch
 local.extra-magic.patch
 local.manpage-seccomp-is-disabled.patch