gnu: octave: Update to 4.4.1.

* gnu/packages/maths.scm (octave): Update to 4.4.1.
(qtoctave)[source]: Remove obsolete patch.
* gnu/packages/patches/qtoctave-qt-5.11-fix.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -1097,7 +1097,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/qemu-glibc-2.27.patch 			\
   %D%/packages/patches/qt4-ldflags.patch			\
   %D%/packages/patches/qtbase-use-TZDIR.patch			\
-  %D%/packages/patches/qtoctave-qt-5.11-fix.patch		\
   %D%/packages/patches/qtscript-disable-tests.patch		\
   %D%/packages/patches/quagga-reproducible-build.patch          \
   %D%/packages/patches/quickswitch-fix-dmenu-check.patch	\

gnu/packages/maths.scm

@@ -1350,12 +1350,12 @@ can solve two kinds of problems:
 @end enumerate\n")
     (license license:bsd-3)))
 
-;; For a fully featured Octave, users  are strongly recommended also to install
+;; For a fully featured Octave, users are strongly recommended also to install
 ;; the following packages: less, ghostscript, gnuplot.
 (define-public octave
   (package
     (name "octave")
-    (version "4.4.0")
+    (version "4.4.1")
     (source
      (origin
       (method url-fetch)
@@ -1363,7 +1363,7 @@ can solve two kinds of problems:
                           version ".tar.lz"))
       (sha256
        (base32
-        "0nm766737gbkq9wqry54a026k3dg7rb1065kngfpwgjz8b544xbp"))))
+        "0jsdgizlv02an2ppfjwk5qf209zpwi3317yb7jvlsjzxnir3lvhy"))))
     (build-system gnu-build-system)
     (inputs
      `(("lapack" ,lapack)
@@ -1433,10 +1433,7 @@ script files.")
   (package (inherit octave)
     (name "qtoctave")
     (source (origin
-              (inherit (package-source octave))
-              (patches (append (origin-patches (package-source octave))
-                               (search-patches
-                                "qtoctave-qt-5.11-fix.patch")))))
+              (inherit (package-source octave))))
     (inputs
      `(("qscintilla" ,qscintilla)
        ("qt" ,qtbase)

gnu/packages/patches/qtoctave-qt-5.11-fix.patch

@@ -1,26 +0,0 @@
-This patch comes from upstream:
-https://hg.savannah.gnu.org/hgweb/octave/rev/cdaa884568b1.
-
-# HG changeset patch
-# User Mike Miller <mtmiller@octave.org>
-# Date 1527214835 25200
-# Node ID cdaa884568b159549bd373f04386ff62417f6df9
-# Parent  9e39a53b4e007d3f79f88b711ab9fa5f2f24fbc9
-add Qt include needed to build against Qt 5.11 (bug #53978)
-
-* settings-dialog.cc: Add missing include for <QButtonGroup> to fix build
-failure with Qt 5.11.
-
-diff --git a/libgui/src/settings-dialog.cc b/libgui/src/settings-dialog.cc
---- a/libgui/src/settings-dialog.cc
-+++ b/libgui/src/settings-dialog.cc
-@@ -34,6 +34,8 @@
- #include "workspace-model.h"
- #include "settings-dialog.h"
- #include "ui-settings-dialog.h"
-+
-+#include <QButtonGroup>
- #include <QDir>
- #include <QFileInfo>
- #include <QFileDialog>
-