Merge pull request swiftlang#9212 from apple/revert-9187-nc-codable

Author: swift-ci

stdlib/public/core/CMakeLists.txt

@@ -35,7 +35,7 @@ set(SWIFTLIB_ESSENTIAL
   BuiltinMath.swift.gyb
   Character.swift
   CocoaArray.swift
-  Codable.swift.gyb
+  Codable.swift
   Collection.swift
   CollectionAlgorithms.swift.gyb
   Comparable.swift