gnu: zathura: Update to 0.4.3.

* gnu/packages/patches/zathura-plugindir-environment-variable.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
* gnu/packages/pdf.scm (zathura): Update to 0.4.3.
[source](patches): Remove.
[native-search-paths]: Adjust for upstreamed patch.

gnu/local.mk

@@ -1264,8 +1264,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/xfce4-settings-defaults.patch		\
   %D%/packages/patches/xinetd-fix-fd-leak.patch			\
   %D%/packages/patches/xinetd-CVE-2013-4342.patch		\
-  %D%/packages/patches/xmodmap-asprintf.patch 			\
-  %D%/packages/patches/zathura-plugindir-environment-variable.patch
+  %D%/packages/patches/xmodmap-asprintf.patch
 
 MISC_DISTRO_FILES =				\
   %D%/packages/ld-wrapper.in

gnu/packages/patches/zathura-plugindir-environment-variable.patch

@@ -1,32 +0,0 @@
-From ae8e4cc9ab57ff25d2ba6c4b369e8531ce43a6d2 Mon Sep 17 00:00:00 2001
-From: Paul van der Walt <paul@denknerd.org>
-Date: Mon, 2 Mar 2015 22:15:39 +0100
-Subject: [PATCH] Search path environment variable for Zathura.
-
-Adds a search path environment variable for zathura plugins (for reading
-different file formats) called ZATHURA_PLUGIN_PATH. Command line option
--p still takes precedence.
-
-Patch by Paul van der Walt <paul@denknerd.org>
-Adjusted for Zathura 0.3.9 by Tobias Geerinckx-Rice <me@tobias.gr>
----
- zathura/zathura.c | 7 +++++++
- 1 file changed, 7 insertions(+)
-
-diff --git a/zathura/zathura.c b/zathura/zathura.c
---- a/zathura/zathura.c
-+++ b/zathura/zathura.c
-@@ -597,6 +597,13 @@ zathura_set_plugin_dir(zathura_t* zathura, const char* dir)
-   g_return_if_fail(zathura != NULL);
-   g_return_if_fail(zathura->plugins.manager != NULL);
- 
-+  /* Added for Guix: check if environment variable
-+   * is set to specify location of zathura plugins.
-+   */
-+
-+  if (dir == NULL)
-+    dir = g_getenv("ZATHURA_PLUGIN_PATH");
-+
-   if (dir != NULL) {
-     set_plugin_dir(zathura, dir);
- #ifdef ZATHURA_PLUGINDIR

gnu/packages/pdf.scm

@@ -496,7 +496,7 @@ by using the poppler rendering engine.")
 (define-public zathura
   (package
     (name "zathura")
-    (version "0.4.0")
+    (version "0.4.3")
     (source (origin
               (method url-fetch)
               (uri
@@ -504,9 +504,7 @@ by using the poppler rendering engine.")
                               version ".tar.xz"))
               (sha256
                (base32
-                "1j0yah09adv3bsjhhbqra5lambal32svk8fxmf89wwmcqrcr4qma"))
-              (patches (search-patches
-                        "zathura-plugindir-environment-variable.patch"))))
+                "0hgx5x09i6d0z45llzdmh4l348fxh1y102sb1w76f2fp4r21j4ky"))))
     (native-inputs `(("pkg-config" ,pkg-config)
                      ("gettext" ,gettext-minimal)
                      ("glib:bin" ,glib "bin")
@@ -523,7 +521,7 @@ by using the poppler rendering engine.")
                          ("girara" ,girara)))
     (native-search-paths
      (list (search-path-specification
-            (variable "ZATHURA_PLUGIN_PATH")
+            (variable "ZATHURA_PLUGINS_PATH")
             (files '("lib/zathura")))))
     (build-system meson-build-system)
     (arguments