gnu: xapian: Update to 1.4.9.

* gnu/packages/patches/xapian-revert-5489fb2f8.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
* gnu/packages/search.scm (xapian): Update to 1.4.9.
[source](patches): Remove.
(python-xapian-bindings): Update to 1.4.9.

gnu/local.mk

@@ -1230,7 +1230,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/wpa-supplicant-krack-followups.patch	\
   %D%/packages/patches/wxmaxima-do-not-use-old-gnuplot-parameters.patch	\
   %D%/packages/patches/x265-detect512-all-arches.patch		\
-  %D%/packages/patches/xapian-revert-5489fb2f8.patch		\
   %D%/packages/patches/xboing-CVE-2004-0149.patch		\
   %D%/packages/patches/xf86-video-ark-remove-mibstore.patch	\
   %D%/packages/patches/xf86-video-geode-glibc-2.20.patch	\

gnu/packages/patches/xapian-revert-5489fb2f8.patch

@@ -1,23 +0,0 @@
-Revert this upstream commit which breaks a test case in "notmuch":
-
-https://git.xapian.org/?p=xapian;a=commitdiff;h=5489fb2f838c0f0b0a593b4c17df282a93a1fe5a
-
-See the notmuch FAQ entry:
-
-https://notmuchmail.org/faq/#index12h2
-
-This should be fixed for later releases.
-
-diff --git a/backends/glass/glass_postlist.cc b/xapian-core/backends/glass/glass_postlist.cc
-index 80e578b85..a47f14a68 100644
---- a/backends/glass/glass_postlist.cc
-+++ b/backends/glass/glass_postlist.cc
-@@ -759,7 +759,7 @@ GlassPostList::open_nearby_postlist(const std::string & term_,
-     (void)need_pos;
-     if (term_.empty())
- 	RETURN(NULL);
--    if (!this_db.get() || this_db->postlist_table.is_modified())
-+    if (!this_db.get() || this_db->postlist_table.is_writable())
- 	RETURN(NULL);
-     RETURN(new GlassPostList(this_db, term_, cursor->clone()));
- }

gnu/packages/search.scm

@@ -46,15 +46,14 @@
 (define-public xapian
   (package
     (name "xapian")
-    (version "1.4.7")
+    (version "1.4.9")
     ;; Note: When updating Xapian, remember to update xapian-bindings below.
     (source (origin
               (method url-fetch)
               (uri (string-append "https://oligarchy.co.uk/xapian/" version
                                   "/xapian-core-" version ".tar.xz"))
-              (patches (search-patches "xapian-revert-5489fb2f8.patch"))
               (sha256
-               (base32 "1lxmlds3v5s1gng9nk1rvmln1zcksrw5ds509y0glylwch5qmw0k"))))
+               (base32 "1k7m7m9jld96k16ansfw2w3c354pvd8ibhnrb6dw012g06fw7sfd"))))
     (build-system gnu-build-system)
     (inputs `(("zlib" ,zlib)
               ("util-linux" ,util-linux)))
@@ -92,7 +91,7 @@ rich set of boolean query operators.")
                                   "/xapian-bindings-" version ".tar.xz"))
               (sha256
                (base32
-                "0sjf9ck3a6p7xnd84w09l6s0xn2g03k9a9417f4mjnywfq9pa6a5"))))
+                "0ll3z3418r7bzxs4kyini2cbci5xl8i5scl3wyx88s2v4ak56bcz"))))
     (build-system gnu-build-system)
     (arguments
      `(#:configure-flags '("--with-python3")