gnu: python-idna: Remove 2.7.

* gnu/packages/python-xyz.scm (python-idna-2.7): Remove variable.

gnu/packages/python-xyz.scm

@@ -12055,17 +12055,6 @@ the Python standard library but currently only supports the older 2003
 specification.")
     (license license:bsd-4)))
 
-(define-public python-idna-2.7
-  (package (inherit python-idna)
-           (version "2.7")
-           (source (origin
-                     (method url-fetch)
-                     (uri (pypi-uri "idna" version))
-                     (sha256
-                      (base32
-                       "05jam7d31767dr12x0rbvvs8lxnpb1mhdb2zdlfxgh83z6k3hjk8"))))))
-
-
 (define-public python2-idna
   (package-with-python2 python-idna))