go: use go-packages and remove my-go-list-packages

init.el

@@ -517,19 +517,11 @@ inserted between the braces between the braces."
       (insert "}")
       (indent-according-to-mode))))
 
-(defun my-go-list-packages ()
-  "Return list of Go packages."
-  (split-string
-   (with-temp-buffer
-     (shell-command "go list ... 2>/dev/null" (current-buffer))
-     (buffer-substring-no-properties (point-min) (point-max)))
-   "\n"))
-
 (defun my-godoc-package ()
   "Display godoc for given package (with completion)."
   (interactive)
   (godoc (helm :sources (helm-build-sync-source "Go packages"
-			  :candidates (my-go-list-packages))
+			  :candidates (go-packages))
 	       :buffer "*godoc packages*")))
 
 (use-package lsp-mode