gnu: chipmunk: Update to 7.0.3-1.d0239ef.

* gnu/packages/game-development.scm (chipmunk): Update to 7.0.3-1.d0239ef.
[source]<snippet>: Remove fix included upstream.

Change-Id: Iac849fffc1d9cf3528a4197ddf741d588fc866a5

gnu/packages/game-development.scm

@@ -2857,25 +2857,21 @@ computer games, 3D authoring tools and simulation tools.")
     (license (list license:lgpl2.1+ license:expat))))
 
 (define-public chipmunk
+  (let ((commit "d0239ef4599b3688a5a336373f7d0a68426414ba")
+        (revision "1"))
     (package
       (name "chipmunk")
-    (version "7.0.3")
+      (version (git-version "7.0.3" revision commit))
       (source
        (origin
          (method git-fetch)
          (uri (git-reference
                (url "https://github.com/slembcke/Chipmunk2D")
-             (commit (string-append "Chipmunk-" version))))
+               (commit commit)))
          (file-name (git-file-name name version))
          (sha256
-        (base32 "1qmkn01g06p3rnhmbyffmjns6wj5vhgf9cscigk3wzxcpwv1hyxb"))
-       (modules '((guix build utils)))
-       (snippet
-        #~(begin
-            ;; This is fixed in the upstream repository but the fix
-            ;; has not been released.
-            (substitute* "src/cpHastySpace.c"
-              (("#include <sys/sysctl.h>") ""))))))
+          (base32 "1910rfnanhna99bhfiyny3ki7aip2i9p4jzmwsfcg16m9gip5fd6"))
+         (modules '((guix build utils)))))
       (build-system cmake-build-system)
       (arguments
        (list #:tests? #f                ;no test
@@ -2888,7 +2884,7 @@ computer games, 3D authoring tools and simulation tools.")
       (synopsis "Fast and lightweight 2D game physics library")
       (description "Chipmunk is a simple, lightweight, fast and portable 2D
 rigid body physics library written in C.")
-    (license license:expat)))
+      (license license:expat))))
 
 (define-public box2d
   (package