wallpaper: disable static linking to swift stdlib

Closes #56682.

Signed-off-by: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>

Formula/wallpaper.rb

@@ -2,6 +2,7 @@ class Wallpaper < Formula
   desc "Manage the desktop wallpaper"
   homepage "https://github.com/sindresorhus/macos-wallpaper"
   url "https://github.com/sindresorhus/macos-wallpaper/archive/v2.1.0.tar.gz"
+  revision 1
   sha256 "4925247524535c0cc128dcc4d87f5538a5ce3b5d3a3c211127fd646ee00252b6"
   head "https://github.com/sindresorhus/macos-wallpaper.git"
 
@@ -14,7 +15,7 @@ class Wallpaper < Formula
   depends_on :macos => :sierra
 
   def install
-    system "swift", "build", "-c", "release", "--static-swift-stdlib", "--disable-sandbox"
+    system "swift", "build", "--disable-sandbox", "-c", "release"
     bin.install ".build/release/wallpaper"
   end