Revert "Follow up for swiftlang#1198: Fix test build for FOUNDATION_FRAMEWORK (swiftlang#1261)"

This reverts commit 8d63523.

Author: itingliu

Tests/FoundationEssentialsTests/URITemplatingTests/URLTemplate_ExpressionTests.swift

@@ -20,11 +20,11 @@ import struct Foundation.URL
 #endif
 import Testing
 
+private typealias Expression = URL.Template.Expression
+private typealias Element = URL.Template.Expression.Element
+
 @Suite("URL.Template Expression")
 private enum ExpressionTests {
-    private typealias Expression = URL.Template.Expression
-    private typealias Element = URL.Template.Expression.Element
-
     @Test
     static func parsingWithSingleName() throws {
         #expect(