gnu: r-feather: Move from serialization.scm to cran.scm.

* gnu/packages/serialization.scm (r-feather): Move from here...
* gnu/packages/cran.scm (r-feather): ...to here.

gnu/packages/cran.scm

@@ -10,6 +10,7 @@
 ;;; Copyright © 2018 Konrad Hinsen <konrad.hinsen@fastmail.net>
 ;;; Copyright © 2018 Mădălin Ionel Patrașcu <madalinionel.patrascu@mdc-berlin.de>
 ;;; Copyright © 2018 Laura Lazzati <laura.lazzati.15@gmail.com>
+;;; Copyright © 2018 Leo Famulari <leo@famulari.name>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -775,6 +776,28 @@ named elements: the @code{status}, the @code{headers}, and the @code{body}.")
 work well on small screens.")
     (license license:gpl3)))
 
+(define-public r-feather
+  (package
+    (name "r-feather")
+    (version "0.3.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (cran-uri "feather" version))
+       (sha256
+        (base32
+         "1q6dbkfnkpnabq8lb6bm9ma44cfcghx2lm23pyk3vg7943wrn1pi"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-hms" ,r-hms)
+       ("r-rcpp" ,r-rcpp)
+       ("r-tibble" ,r-tibble)))
+    (home-page "https://github.com/wesm/feather")
+    (synopsis "R Bindings to the Feather API")
+    (description "Read and write feather files, a lightweight binary columnar
+data store designed for maximum speed.")
+    (license license:asl2.0)))
+
 (define-public r-haven
   (package
     (name "r-haven")

gnu/packages/serialization.scm

@@ -34,20 +34,17 @@
   #:use-module (guix build-system cmake)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system python)
-  #:use-module (guix build-system r)
   #:use-module (gnu packages)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages boost)
   #:use-module (gnu packages check)
   #:use-module (gnu packages compression)
-  #:use-module (gnu packages cran)
   #:use-module (gnu packages databases)
   #:use-module (gnu packages documentation)
   #:use-module (gnu packages lua)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages python)
-  #:use-module (gnu packages perl)
+  #:use-module (gnu packages perl))
-  #:use-module (gnu packages statistics))
 
 (define-public cereal
   (package
@@ -477,28 +474,6 @@ C#, C, Go, Java, JavaScript, PHP, and Python.  It was originally created for
 game development and other performance-critical applications.")
     (license license:asl2.0)))
 
-(define-public r-feather
-  (package
-    (name "r-feather")
-    (version "0.3.1")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (cran-uri "feather" version))
-        (sha256
-         (base32
-          "1q6dbkfnkpnabq8lb6bm9ma44cfcghx2lm23pyk3vg7943wrn1pi"))))
-    (build-system r-build-system)
-    (propagated-inputs
-     `(("r-hms" ,r-hms)
-       ("r-rcpp" ,r-rcpp)
-       ("r-tibble" ,r-tibble)))
-    (home-page "https://github.com/wesm/feather")
-    (synopsis "R Bindings to the Feather API")
-    (description "Read and write feather files, a lightweight binary columnar
-daa store designed for maximum speed.")
-    (license license:asl2.0)))
-
 (define-public python-feather-format
   (package
     (name "python-feather-format")