gnu: go-dario-cat-mergo: Move to golang-xyz.

* gnu/packages/golang.scm (go-dario-cat-mergo): Move from here ...
* gnu/packages/golang-xyz.scm: ... to here.

Change-Id: I3c82451ec5c3147e00f6598986903dda735f9e0f

gnu/packages/golang.scm

@@ -3202,35 +3202,6 @@ Porter2 stemmer}.  It is written completely using finite state machines to do
 suffix comparison, rather than the string-based or tree-based approaches.")
       (license license:asl2.0))))
 
-(define-public go-dario-cat-mergo
-  (package
-    (name "go-dario-cat-mergo")
-    (version "1.0.1")
-    (source (origin
-              (method git-fetch)
-              (uri (git-reference
-                    (url "https://github.com/darccio/mergo")
-                    (commit (string-append "v" version))))
-              (file-name (git-file-name name version))
-              (sha256
-               (base32
-                "0v12vc9bmqq89k4y60a8ykmv85hpa7nh73sn9b7ars143pxvmhf1"))))
-    (build-system go-build-system)
-    (arguments
-     `(#:import-path "dario.cat/mergo"))
-    (native-inputs
-     (list go-gopkg-in-yaml-v3))
-    (home-page "https://github.com/darccio/mergo")
-    (synopsis "Helper to merge structs and maps in Golang")
-    (description "Helper to merge structs and maps in Golang.  Useful for
-configuration default values, avoiding messy if-statements.
-
-Mergo merges same-type structs and maps by setting default values in
-zero-value fields.  Mergo won't merge unexported (private) fields.  It will do
-recursively any exported one.  It also won't merge structs inside
-maps (because they are not addressable using Go reflection).")
-    (license license:bsd-3)))
-
 (define-public go-github-com-olekukonko-ts
   (let ((commit "78ecb04241c0121483589a30b0814836a746187d")
         (revision "0"))