gnu: hplip: Update to 3.20.11.

* gnu/packages/cups.scm (hplip): Update to 3.20.11.
[source]: Remove upstreamed patch.
* gnu/packages/patches/hplip-fix-bug-1898438.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -1159,7 +1159,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/hubbub-sort-entities.patch		\
   %D%/packages/patches/hurd-cross.patch				\
   %D%/packages/patches/hurd-xattr.patch				\
-  %D%/packages/patches/hplip-fix-bug-1898438.patch		\
   %D%/packages/patches/hplip-remove-imageprocessor.patch	\
   %D%/packages/patches/hydra-disable-darcs-test.patch		\
   %D%/packages/patches/icecat-makeicecat.patch			\

gnu/packages/cups.scm

@@ -415,17 +415,16 @@ should only be used as part of the Guix cups-pk-helper service.")
 (define-public hplip
   (package
     (name "hplip")
-    (version "3.20.9")
+    (version "3.20.11")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/hplip/hplip/" version
                                   "/hplip-" version ".tar.gz"))
               (sha256
                (base32
-                "1prdbp410405xrfggjc7y34nzljg7jnbgjzalgv4khwwma4i299n"))
+                "04fvdyjyjbkviy3awgm7g43p3lrvrsmgaqz8bwra22g7v2rpa5hb"))
               (modules '((guix build utils)))
-              (patches (search-patches "hplip-fix-bug-1898438.patch"
-                                       "hplip-remove-imageprocessor.patch"))
+              (patches (search-patches "hplip-remove-imageprocessor.patch"))
               (snippet
                '(begin
                   ;; Delete non-free blobs: .so files, pre-compiled

gnu/packages/patches/hplip-fix-bug-1898438.patch

@@ -1,19 +0,0 @@
-From: Tobias Geerinckx-Rice <me@tobias.gr>
-Date: Sun, 04 Oct 2020 13:28:49 +0200
-Subject: [PATCH] gnu: hplip: Fix non-network builds (bug #1898438)
-
-Reported as <https://bugs.launchpad.net/hplip/+bug/1898438>.
-
-diff -Naur a/scan/sane/hpaio.c b/scan/sane/hpaio.c
---- a/scan/sane/hpaio.c	1970-01-01 01:00:01.000000000 +0100
-+++ b/scan/sane/hpaio.c	2020-10-04 13:26:34.665244052 +0200
-@@ -36,7 +36,9 @@
- #include <string.h>
- #include <cups/cups.h>
- #include "hpmud.h"
-+#ifdef HAVE_LIBNETSNMP
- #include "avahiDiscovery.h"
-+#endif
- #include "hp_ipp.h"
- #include "soap.h"
- #include "soapht.h"