app-text/po4a: remove unused patch

app-text/po4a/files/po4a-0.45-port-our-regex-to-perl-5.22.patch

@@ -1,44 +0,0 @@
-Fix sgml and tex regex against perl-5.22. See Gentoo-bug: 604428.
-Based on a patch from upstream git. Original commit info:
-From 44e5c2f02b3166536257bc9d6384d41dda386648 Mon Sep 17 00:00:00 2001
-From: Martin Quinson <martin.quinson@loria.fr>
-Date: Fri, 28 Aug 2015 19:01:17 +0200
-Subject: [PATCH] Port our regex to Perl 5.22 (patch by Roderich Schupp)
-
----
- lib/Locale/Po4a/Sgml.pm | 4 ++--
- lib/Locale/Po4a/TeX.pm  | 2 +-
- 2 files changed, 3 insertions(+), 3 deletions(-)
-
-diff --git a/lib/Locale/Po4a/Sgml.pm b/lib/Locale/Po4a/Sgml.pm
-index 742e003..3ad5e8d 100644
---- a/lib/Locale/Po4a/Sgml.pm
-+++ b/lib/Locale/Po4a/Sgml.pm
-@@ -672,9 +672,9 @@ sub parse_file {
-             }
-         }
-     }
--    $prolog =~ s/<!--{PO4A-ent-beg-(.*?)}(.*?){PO4A-ent-end}-->/<!ENTITY % $1 SYSTEM "$2">/g;
-+    $prolog =~ s/<!--\{PO4A-ent-beg-(.*?)\}(.*?)\{PO4A-ent-end\}-->/<!ENTITY % $1 SYSTEM "$2">/g;
-     # Unprotect undefined inclusions, and die of them
--    $prolog =~ s/{PO4A-percent}/%/sg;
-+    $prolog =~ s/\{PO4A-percent\}/%/sg;
-     if ($prolog =~ /%([^;\s]*);/) {
-         die wrap_mod("po4a::sgml",
-                      dgettext("po4a",
-diff --git a/lib/Locale/Po4a/TeX.pm b/lib/Locale/Po4a/TeX.pm
-index a78f94b..0faa465 100644
---- a/lib/Locale/Po4a/TeX.pm
-+++ b/lib/Locale/Po4a/TeX.pm
-@@ -1168,7 +1168,7 @@ sub parse {
- #       environment contains an un-closed bracket)
-         if (   ($closed and ($line =~ /^\s*$/ or
-                              $line =~ /^\s*$RE_VERBATIM\s*$/))
--            or (in_verbatim(@env) and $line =~ /^\s*\Q$ESCAPE\Eend{$env[-1]}\s*$/)
-+            or (in_verbatim(@env) and $line =~ /^\s*\Q$ESCAPE\Eend\{$env[-1]\}\s*$/)
-            ) {
-             # An empty line. This indicates the end of the current
-             # paragraph.
--- 
-2.10.2
-