gnu: libx11: Update to 1.6.10 and remove replacement.

* gnu/packages/xorg.scm (libx11): Update to 1.6.10.
[replacement]: Remove.
(libx11/fixed): Remove.

gnu/packages/xorg.scm

@@ -2,7 +2,7 @@
 ;;; Copyright © 2013, 2014 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2014, 2015, 2017, 2018, 2020 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014, 2015 Eric Bavier <bavier@member.fsf.org>
-;;; Copyright © 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2015 Eric Dvorsak <eric@dvorsak.fr>
 ;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
 ;;; Copyright © 2015 Cyrill Schenkel <cyrill.schenkel@gmail.com>
@@ -5498,8 +5498,7 @@ (define-public xorg-server-xwayland
 (define-public libx11
   (package
     (name "libx11")
-    (version "1.6.9")
-    (replacement libx11/fixed)
+    (version "1.6.10")
     (source
       (origin
         (method url-fetch)
@@ -5509,7 +5508,7 @@ (define-public libx11
                ".tar.bz2"))
         (sha256
           (base32
-            "1ldyn9c6pyx54sxzaw120n3q42rqi7b503aqmyjky6fn038fiiww"))))
+            "09k2pqmqbn2m1bpgl7jfxyqxaaxsnzbnp2bp8ycmqldqi5ln4j5g"))))
     (build-system gnu-build-system)
     (outputs '("out"
                "doc"))                            ;8 MiB of man pages + XML
@@ -5537,19 +5536,6 @@ (define-public libx11
     (description "Xorg Core X11 protocol client library.")
     (license license:x11)))
 
-(define libx11/fixed  ; Fixes CVE-2020-14344
-  (package
-    (inherit libx11)
-    (version "1.6.A")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append
-               "mirror://xorg/individual/lib/libX11-1.6.10.tar.bz2"))
-        (sha256
-          (base32
-            "09k2pqmqbn2m1bpgl7jfxyqxaaxsnzbnp2bp8ycmqldqi5ln4j5g"))))))
-
 ;; packages of height 5 in the propagated-inputs tree
 
 (define-public libxcursor