gnu: biber: Update to 2.19.

* gnu/packages/texlive.scm (biber): Update to 2.19. Remove patch.
* gnu/packages/patches/biber-adapt-perl-5.36.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Unregister patch.

gnu/local.mk

@@ -946,7 +946,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/bazaar-CVE-2017-14176.patch		\
   %D%/packages/patches/bc-fix-cross-compilation.patch		\
   %D%/packages/patches/bdb-5.3-atomics-on-gcc-9.patch		\
-  %D%/packages/patches/biber-adapt-perl-5.36.patch              \
   %D%/packages/patches/bind-re-add-attr-constructor-priority.patch	\
   %D%/packages/patches/brightnessctl-elogind-support.patch	\
   %D%/packages/patches/bsd-games-2.17-64bit.patch		\

gnu/packages/patches/biber-adapt-perl-5.36.patch

@@ -1,40 +0,0 @@
-From d9e961710074d266ad6bdf395c98868d91952088 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
-Date: Wed, 25 May 2022 12:41:59 +0200
-Subject: [PATCH] Adapt to Perl 5.36
-
-A developmental release of Perl 5.36.0 fails to run tests with:
-
-    $ perl -Ilib t/basic-misc.t
-    1..72
-    Can't modify undef operator in scalar assignment at lib/Biber/Section.pm line 433, near "undef;"
-    Compilation failed in require at lib/Biber.pm line 24.
-    BEGIN failed--compilation aborted at lib/Biber.pm line 24.
-    Compilation failed in require at t/basic-misc.t line 11.
-    BEGIN failed--compilation aborted at t/basic-misc.t line 11.
-    # Looks like your test exited with 255 before it could output anything.
-
-This is because of a missing semicolon between commands in
-del_everykeys(). The new perl is more strict and raises a compile-time
-error:
-
-    $ perl -e '$a = undef $b = undef;'
-    Can't modify undef operator in scalar assignment at -e line 1, near "undef;"
-    Execution of -e aborted due to compilation errors.
----
- lib/Biber/Section.pm | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/lib/Biber/Section.pm b/lib/Biber/Section.pm
-index 03ed69a51..a78942f57 100644
---- a/lib/Biber/Section.pm
-+++ b/lib/Biber/Section.pm
-@@ -429,7 +429,7 @@ sub add_everykey {
- 
- sub del_everykeys {
-   my $self = shift;
--  $self->{everykey} = undef
-+  $self->{everykey} = undef;
-   $self->{everykey_lc} = undef;
-   return;
- }

gnu/packages/texlive.scm

@@ -455,7 +455,7 @@ (define-public biber
     ;; checking the Biber/BibLaTeX compatibility matrix in the BibLaTeX manual
     ;; at <https://ctan.org/pkg/biblatex>.
     (name "biber")
-    (version "2.17")
+    (version "2.19")
     (source (origin
               (method git-fetch)
               (uri (git-reference
@@ -464,8 +464,7 @@ (define-public biber
               (file-name (git-file-name name version))
               (sha256
                (base32
-                "0b8a8lldz9xx3yr1h5bh2akbqq1ljydqyhr6bdf6qd7ncqvsrpaf"))
-              (patches (search-patches "biber-adapt-perl-5.36.patch"))))
+                "1cl7hrflbw61wc95rnjdwyx8cip3jmpn3ic2zjfm0pdp86f2i9rj"))))
     (build-system perl-build-system)
     (arguments
      `(#:phases