gnu: poppler-next: Delete variable.

* gnu/packages/pdf.scm (poppler-next): Delete variable.
* gnu/packages/gnome.scm (evince) [inputs]: Replace poppler-next with poppler.

gnu/packages/gnome.scm

@@ -2693,7 +2693,7 @@ (define-public evince
            libspectre
            djvulibre
            ghostscript
-           poppler-next
+           poppler
            libtiff
            texlive-libkpathsea          ; for DVI support
            gnome-desktop

gnu/packages/pdf.scm

@@ -375,26 +375,6 @@ (define-public poppler-data
     (license (list license:bsd-3
                    license:gpl2))))
 
-;; XXX: Remove it on core-updates.  It is only needed for evince 42.3 that
-;; requires a recent poppler.
-(define-public poppler-next
-  (package
-    (inherit poppler)
-    (name "poppler-next")
-    (version "22.09.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://poppler.freedesktop.org/poppler-"
-                                  version ".tar.xz"))
-              (sha256
-               (base32
-                "0bhyli95h3dkirjc0ibh08s4nim6rn7f38sbfzdwln8k454gga6p"))))
-    (native-inputs
-     (list pkg-config
-           `(,glib "bin") ; glib-mkenums, etc.
-           gobject-introspection
-           python)) ))
-
 (define-public poppler-qt5
   (package/inherit poppler
    (name "poppler-qt5")