gnu: senpai: Update to 0.4.0.

A note from upstream: This project has migrated to sr.ht/~delthas.

gnu/packages/messaging.scm (senpai): Update to 0.4.0.
[arguments]: Adjust <import-path> and <unpack-path> to follow updated
go.mod.
[native-inputs]: Remove go-github-com-delthas-tcell-v2 and
go-github-com-mattn-go-runewidth; add go-git-sr-ht-rockorager-vaxis,
go-github-com-containerd-console, go-github-com-disintegration-imaging,
go-github-com-godbus-dbus-v5, go-github-com-rivo-uniseg, and
go-github-com-mattn-go-runewidth.

* gnu/packages/golang-xyz.scm (go-github-com-delthas-tcell-v2): Delete variable.

Change-Id: I7d832366ba3e69655eb290f87d164a4f0ff5f11e
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>

gnu: Remove go-github-com-delthas-tcell-v2.

gnu/packages/golang-xyz.scm

@@ -5993,27 +5993,6 @@ also favors portability, and includes support for all POSIX systems.")
      (modify-inputs (package-inputs go-github-com-gdamore-tcell)
        (prepend go-golang-org-x-term go-golang-org-x-sys)))))
 
-(define-public go-github-com-delthas-tcell-v2
-  ;; TODO This variant allows upgrading senpai, and looks to be unnecessary in
-  ;; the next release of senpai
-  (hidden-package
-   (package
-     (inherit go-github-com-gdamore-tcell)
-     (name "go-github-com-delthas-tcell")
-     (version "2.4.1")
-     (source
-      (origin
-        (method git-fetch)
-        (uri (git-reference
-              (url "https://github.com/delthas/tcell")
-              (commit "837a7d7")))
-        (file-name (git-file-name name version))
-        (sha256
-         (base32 "05zr73q38dawl7hr6g7v4pkyv6mqr0zp2l9qsgn7xmf1p9q4bn7j"))))
-     (propagated-inputs
-      (modify-inputs (package-inputs go-github-com-gdamore-tcell)
-        (prepend go-golang-org-x-term go-golang-org-x-sys))))))
-
 (define-public go-github-com-gdey-errors
   (package
     (name "go-github-com-gdey-errors")