gnu: guile: Remove version 2.2.2.

* gnu/packages/guile.scm (guile-2.2.2): Remove.
* guix/self.scm (guile-for-build): Remove special case for "2.2.2".
(guix-derivation): Likewise.
* build-aux/build-self.scm (build): Likewise.

build-aux/build-self.scm

@@ -297,9 +297,7 @@ person's version identifier."
 ;; The procedure below is our return value.
 (define* (build source
                 #:key verbose? (version (date-version-string)) system
-                (guile-version (match ((@ (guile) version))
-                                 ("2.2.2" "2.2.2")
-                                 (_       (effective-version))))
+                (guile-version (effective-version))
                 (pull-version 0)
                 #:allow-other-keys
                 #:rest rest)

gnu/packages/guile.scm

@@ -287,21 +287,6 @@ without requiring the source code to be rewritten.")
                   (max-silent-time . 36000))))) ;10 hours (needed on ARM
                                                 ;  when heavily loaded)
 
-(define-public guile-2.2.2
-  ;; Keep it so that, when 'guix' runs on 2.2.2, 'guix pull' compiles objects
-  ;; with 2.2.2, thereby avoiding the ABI incompatibility issues described in
-  ;; <https://bugs.gnu.org/29570>.
-  (package
-    (inherit guile-2.2)
-    (version "2.2.2")
-    (source (origin
-              (inherit (package-source guile-2.2))
-              (uri (string-append "mirror://gnu/guile/guile-" version
-                                  ".tar.xz"))
-              (sha256
-               (base32
-                "1azm25zcmxif0skxfrp11d2wc89nrzpjaann9yxdw6pvjxhs948w"))))))
-
 (define-public guile-next
   (deprecated-package "guile-next" guile-2.2))
 

guix/self.scm

@@ -890,11 +890,6 @@ running Guile."
                 'canonical-package))
 
   (match version
-    ("2.2.2"
-     ;; Gross hack to avoid ABI incompatibilities (see
-     ;; <https://bugs.gnu.org/29570>.)
-     (module-ref (resolve-interface '(gnu packages guile))
-                 'guile-2.2.2))
     ("2.2"
      (canonical-package (module-ref (resolve-interface '(gnu packages guile))
                                     'guile-2.2)))
@@ -925,9 +920,7 @@ is not supported."
                                #:name (string-append "guix-"
                                                      (shorten version))
                                #:pull-version pull-version
-                               #:guile-version (match guile-version
-                                                 ("2.2.2" "2.2")
-                                                 (version version))
+                               #:guile-version guile-version
                                #:guile-for-build guile)))
       (if guix
           (lower-object guix)