[bug#65866] [PATCH 3/8] perform-download: Remove unused one-argument clause.

[Ludovic Courtès]

Code in ‘builtins.cc’ only ever invokes ‘guix perform-download’ with two
arguments.

* guix/scripts/perform-download.scm (guix-perform-download): Remove
unused one-argument clause.
---
 guix/scripts/perform-download.scm | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/guix/scripts/perform-download.scm 
b/guix/scripts/perform-download.scm
index 6889bcef79..c8f044e82e 100644
--- a/guix/scripts/perform-download.scm
+++ b/guix/scripts/perform-download.scm
@@ -120,13 +120,8 @@ (define-command (guix-perform-download . args)
     (match args
       (((? derivation-path? drv) (? store-path? output))
        (assert-low-privileges)
-       (perform-download (read-derivation-from-file drv)
-                         output
-                         #:print-build-trace? print-build-trace?))
-      (((? derivation-path? drv))                 ;backward compatibility
-       (assert-low-privileges)
-       (perform-download (read-derivation-from-file drv)
-                         #:print-build-trace? print-build-trace?))
+       (let ((drv (read-derivation-from-file drv)))
+         (perform-download drv output #:print-build-trace? 
print-build-trace?)))
       (("--version")
        (show-version-and-exit))
       (x
-- 
2.41.0