Remove the Spaces Announcement sheet. (#5376)

PreviewTests/Sources/GeneratedPreviewTests.swift

@@ -1395,14 +1395,6 @@ extension PreviewTests {
         }
     }
 
-    @Test
-    func spacesAnnouncementSheetView() async throws {
-        AppSettings.resetAllSettings() // Ensure this test's previews start with fresh settings.
-        for (index, preview) in SpacesAnnouncementSheetView_Previews._allPreviews.enumerated() {
-            try await assertSnapshots(matching: preview, step: index)
-        }
-    }
-
     @Test
     func spacesScreen() async throws {
         AppSettings.resetAllSettings() // Ensure this test's previews start with fresh settings.