Clean up the implementation links for 0450-swiftpm-package-traits.md

Author: shahmishal

proposals/0450-swiftpm-package-traits.md

@@ -4,16 +4,10 @@
 * Authors: [Franz Busch](https://github.com/FranzBusch), [Max Desiatov](https://github.com/MaxDesiatov)
 * Review Manager: [Mishal Shah](https://github.com/shahmishal)
 * Status: **Active Review (October 24th...November 7th, 2024**)
+* Implementation: https://github.com/swiftlang/swift-package-manager/pull/7704, https://github.com/swiftlang/swift-package-manager/pull/7703, https://github.com/swiftlang/swift-package-manager/pull/7702, https://github.com/swiftlang/swift-package-manager/pull/7701, https://github.com/swiftlang/swift-package-manager/pull/7694, https://github.com/swiftlang/swift-package-manager/pull/7689
 * Experimental Implementation: Gated on `@_spi(ExperimentalTraits)` in package manifests and `--experimental` prefix for CLI options
 * Review: ([pitch](https://forums.swift.org/t/pitch-package-traits/72191)) ([review](https://forums.swift.org/t/se-0450-package-traits/75598))
 
-- https://github.com/swiftlang/swift-package-manager/pull/7704
-- https://github.com/swiftlang/swift-package-manager/pull/7703
-- https://github.com/swiftlang/swift-package-manager/pull/7702
-- https://github.com/swiftlang/swift-package-manager/pull/7701
-- https://github.com/swiftlang/swift-package-manager/pull/7694
-- https://github.com/swiftlang/swift-package-manager/pull/7689
-
 ## Introduction
 
 Over the past years the package ecosystem has grown tremendously in both the