gnu: r-gtable: Remove duplicate definition.

* gnu/packages/statistics.scm (r-gtable): Remove shadowed 0.1.2 version.
[home-page]: Use HTTPS.
[synopsis, description]: Use those of the removed version.

gnu/packages/statistics.scm

@@ -346,24 +346,6 @@ functions of regression coefficients, and 'epredict' methods that handle
 non-estimable cases correctly.")
     (license license:gpl2+)))
 
-(define-public r-gtable
-  (package
-    (name "r-gtable")
-    (version "0.1.2")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (cran-uri "gtable" version))
-       (sha256
-        (base32 "0k9hfj6r5y238gqh92s3cbdn34biczx3zfh79ix5xq0c5vkai2xh"))))
-    (build-system r-build-system)
-    (home-page "https://cran.r-project.org/web/packages/gtable")
-    (synopsis "R library to arrange grobs in tables")
-    (description
-     "Gtable is a collection of tools to make it easier to work with
-\"tables\" of grobs.")
-    (license license:gpl2+)))
-
 (define-public r-pheatmap
   (package
     (name "r-pheatmap")
@@ -2230,11 +2212,11 @@ variety of formats.")
                 "0vz7073m0a2q12qzzihrfh5c2kx5jqi5l7z470fxmwqghdllh7l0"))))
     (properties `((upstream-name . "gtable")))
     (build-system r-build-system)
-    (home-page "http://cran.r-project.org/web/packages/gtable")
+    (home-page "https://cran.r-project.org/web/packages/gtable")
-    (synopsis "Arrange grobs in tables")
+    (synopsis "R library to arrange grobs in tables")
     (description
-     "This package provides tools to make it easier to work with tables of
+     "Gtable is a collection of tools to make it easier to work with
-grobs.")
+\"tables\" of grobs.")
     (license license:gpl2+)))
 
 (define-public r-gridextra