gnu: r-praise: Move to (gnu packages cran).

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

Change-Id: Ie7aa6d8e98b678d4487dd67997059e6cb908d96b

gnu/packages/statistics.scm

@@ -568,31 +568,6 @@ available, greatly increasing its breadth and scope.")
 understand the language at a deeper level.")
     (license license:gpl2)))
 
-(define-public r-praise
-  (package
-    (name "r-praise")
-    (version "1.0.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (cran-uri "praise" version))
-       (sha256
-        (base32
-         "1gfyypnvmih97p2r0php9qa39grzqpsdbq5g0fdsbpq5zms5w0sw"))))
-    (properties
-     ;; We can't have r-testthat among the inputs here to avoid a dependency
-     ;; cycle.
-     '((updater-ignored-native-inputs . ("r-testthat"))))
-    (build-system r-build-system)
-    ;; Tests require r-testthat, which depends on r-praise.
-    (arguments (list #:tests? #false))
-    (home-page "https://github.com/gaborcsardi/praise")
-    (synopsis "Functions to praise users")
-    (description
-     "This package provides template functions to assist in building friendly
-R packages that praise their users.")
-    (license license:expat)))
-
 (define-public r-testthat
   (package
     (name "r-testthat")