🔥 Remove unnecessary extract step from numeric_owner test

The extract step was left behind after removing the ineffective diff()
call. This test verifies --numeric-owner strips uname/gname, which is
fully covered by the archive::for_each_entry assertion. The extract
step had no assertions and tested nothing.

Author: ChanTsune

cli/tests/cli/create/numeric_owner.rs

@@ -28,21 +28,4 @@ fn create_numeric_owner() {
         assert_eq!(p.gname(), "");
     })
     .unwrap();
-    cli::Cli::try_parse_from([
-        "pna",
-        "--quiet",
-        "x",
-        "numeric_owner/numeric_owner.pna",
-        "--overwrite",
-        "--out-dir",
-        "numeric_owner/out/",
-        "--keep-permission",
-        "--strip-components",
-        "2",
-        #[cfg(windows)]
-        "--unstable",
-    ])
-    .unwrap()
-    .execute()
-    .unwrap();
 }