gnu: openldap: Remove graft.

* gnu/packages/openldap.scm (openldap): Update to 2.4.50. Remove
  replacement.
  (openldap-2.4.50): Remove variable.

gnu/packages/openldap.scm

@@ -61,8 +61,7 @@
 (define-public openldap
   (package
    (name "openldap")
-   (replacement openldap-2.4.50)
-   (version "2.4.49")
+   (version "2.4.50")
    (source (origin
             (method url-fetch)
 
@@ -79,7 +78,7 @@
                         "openldap-release/openldap-" version ".tgz")))
             (sha256
              (base32
-              "0vp524rsngdcykf6ki7vprsyg7gj8z7hszg8xwxz50219fa1gcg3"))))
+              "1f46nlfwmys110j36sifm7ah8m8f3s10c3vaiikmmigmifapvdaw"))))
    (build-system gnu-build-system)
    (inputs `(("bdb" ,bdb-5.3)
              ("cyrus-sasl" ,cyrus-sasl)
@@ -127,19 +126,6 @@
    (license openldap2.8)
    (home-page "https://www.openldap.org/")))
 
-(define openldap-2.4.50
-  (package
-    (inherit openldap)
-    (version "2.4.50")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append "https://www.openldap.org/software/download/"
-                                  "OpenLDAP/openldap-release/openldap-" version
-                                  ".tgz"))
-              (sha256
-               (base32
-                "1f46nlfwmys110j36sifm7ah8m8f3s10c3vaiikmmigmifapvdaw"))))))
-
 (define-public nss-pam-ldapd
   (package
     (name "nss-pam-ldapd")