gnu: guile-xapian: Update to 0.2.0.

* gnu/packages/guile-xyz.scm (guile-xapian): Update to 0.2.0.
[source]: Remove modules and snippet setting LD_LIBRARY_PATH.

gnu/packages/guile-xyz.scm

@@ -4009,7 +4009,7 @@ (define-public guile2.2-lens
 (define-public guile-xapian
   (package
     (name "guile-xapian")
-    (version "0.1.0")
+    (version "0.2.0")
     (home-page "https://git.systemreboot.net/guile-xapian")
     (source
      (origin
@@ -4019,14 +4019,7 @@ (define-public guile-xapian
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "16k61f1jn3g48jaf3730b9l0izr5j933jzyri73nmcnjd09gm35i"))
-       (modules '((guix build utils)))
-       (snippet
-        ;; Guile >= 3.0.7 no longer uses libltdl so we need to explicitly add
-        ;; ".libs" so that 'load-extension' finds the '.so' file.
-        '(substitute* "pre-inst-env.in"
-           (("^LD_LIBRARY_PATH=.*$")
-            "LD_LIBRARY_PATH=\"$abs_top_builddir/.libs\"\n")))))
+         "140cwzpzk4y16ajxrg5zd2d7q60f5ivx5jk8w1h0qfjq2mp14sh7"))))
     (build-system gnu-build-system)
     (arguments
      '(#:make-flags '("GUILE_AUTO_COMPILE=0"))) ; to prevent guild warnings