gnu: icecat: Include generally-useful fixes in the source tarball.

This commit moves some important fixes into a patch applied to the upstream
gnuzilla git repository, whereas previously they were applied in such a way
that only benefitted Guix users.

* gnu/packages/patches/icecat-default-search-ddg.patch,
gnu/packages/patches/icecat-disable-sync.patch: Delete files.
* gnu/packages/patches/icecat-gnuzilla-fixes.patch: New file.
* gnu/local.mk (dist_patch_DATA): Adapt accordingly.
* gnu/packages/gnuzilla.scm (icecat-source): Apply the new patch to the
gnuzilla checkout.
(icecat)[native-inputs]: Remove deleted patches.
[arguments]: In the 'wrap-program' phase, remove MOZ_LEGACY_PROFILES=1
from the wrapper.

gnu/local.mk

@@ -975,9 +975,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/hurd-fix-eth-multiplexer-dependency.patch        \
   %D%/packages/patches/hplip-remove-imageprocessor.patch	\
   %D%/packages/patches/hydra-disable-darcs-test.patch		\
+  %D%/packages/patches/icecat-gnuzilla-fixes.patch			\
   %D%/packages/patches/icecat-makeicecat.patch			\
-  %D%/packages/patches/icecat-default-search-ddg.patch		\
-  %D%/packages/patches/icecat-disable-sync.patch		\
   %D%/packages/patches/icecat-avoid-bundled-libraries.patch	\
   %D%/packages/patches/icecat-use-system-graphite2+harfbuzz.patch	\
   %D%/packages/patches/icecat-use-system-media-libs.patch	\

gnu/packages/gnuzilla.scm

@@ -588,6 +588,8 @@ from forcing GEXP-PROMISE."
              (base32
               "1ll3j2kpsfp1f9dxy67fay1cidsng02l8a3a23wdjqkxgrg1cf4g"))))
 
+         (gnuzilla-fixes-patch
+          (local-file (search-patch "icecat-gnuzilla-fixes.patch")))
          (makeicecat-patch
           (local-file (search-patch "icecat-makeicecat.patch"))))
 
@@ -633,6 +635,8 @@ from forcing GEXP-PROMISE."
 
                 (with-directory-excursion "/tmp/gnuzilla"
                   (make-file-writable "makeicecat")
+                  (invoke "patch" "--force" "--no-backup-if-mismatch"
+                          "-p1" "--input" #+gnuzilla-fixes-patch)
                   (invoke "patch" "--force" "--no-backup-if-mismatch"
                           "-p1" "--input" #+makeicecat-patch)
                   (patch-shebang "makeicecat")
@@ -772,10 +776,6 @@ from forcing GEXP-PROMISE."
        ;;  ,(search-patch "icecat-use-system-graphite2+harfbuzz.patch"))
        ;; ("icecat-use-system-media-libs.patch"
        ;;  ,(search-patch "icecat-use-system-media-libs.patch"))
-       ("icecat-default-search-ddg.patch"
-        ,(search-patch "icecat-default-search-ddg.patch"))
-       ("icecat-disable-sync.patch"
-        ,(search-patch "icecat-disable-sync.patch"))
 
        ("patch" ,(canonical-package patch))
 
@@ -1079,8 +1079,7 @@ from forcing GEXP-PROMISE."
                     (pulseaudio-lib (string-append pulseaudio "/lib")))
                (wrap-program (car (find-files lib "^icecat$"))
                  `("XDG_DATA_DIRS" prefix (,gtk-share))
-                 `("LD_LIBRARY_PATH" prefix (,pulseaudio-lib))
-                 `("MOZ_LEGACY_PROFILES" = ("1")))
+                 `("LD_LIBRARY_PATH" prefix (,pulseaudio-lib)))
                #t))))))
     (home-page "https://www.gnu.org/software/gnuzilla/")
     (synopsis "Entirely free browser derived from Mozilla Firefox")

gnu/packages/patches/icecat-disable-sync.patch

@@ -1,9 +0,0 @@
---- a/browser/app/profile/icecat.js.orig	1980-01-01 18:59:51.000000000 -0500
-+++ b/browser/app/profile/icecat.js	2019-10-25 06:24:03.065989309 -0400
-@@ -2275,3 +2275,6 @@
- pref("general.buildID.override", "Gecko/20100101");
- pref("general.oscpu.override", "Windows NT 6.1");
- pref("general.platform.override", "Win32");
-+
-+// Disable Firefox Accounts and Sign in to Sync.
-+pref("identity.fxaccounts.enabled", false);

gnu/packages/patches/icecat-makeicecat.patch

@@ -96,8 +96,8 @@ index b04c731..06d1f3f 100644
 -cd $SOURCEDIR
 +# cd $SOURCEDIR
  
- #for patch in $DATA/patches/*; do
- #    echo Patching with file: $patch
+ for patch in $DATA/patches/*.patch; do
+     echo Patching with file: $patch
 @@ -226,10 +226,10 @@ cp $DATA/bookmarks.html.in browser/locales/generic/profile/bookmarks.html.in
  
  find -wholename '*/brand.dtd' |xargs /bin/sed 's/trademarkInfo.part1.*/trademarkInfo.part1 "">/' -i