Revert "Really fix duplicate module maps this time." (#8517)

Reverts #8498

Broke swift-foundation build.

Author: dschaefer2

Sources/Build/BuildPlan/BuildPlan+Swift.swift

@@ -20,7 +20,7 @@ extension BuildPlan {
     func plan(swiftTarget: SwiftModuleBuildDescription) throws {
         // We need to iterate recursive dependencies because Swift compiler needs to see all the targets a target
         // builds against
-        for case .module(let dependency, let description) in swiftTarget.recursiveLinkDependencies(using: self) {
+        for case .module(let dependency, let description) in swiftTarget.recursiveDependencies(using: self) {
             switch dependency.underlying {
             case let underlyingTarget as ClangModule where underlyingTarget.type == .library:
                 guard case let .clang(target)? = description else {

Tests/BuildTests/BuildPlanTests.swift

@@ -6972,7 +6972,8 @@ class BuildPlanTestCase: BuildSystemProviderTestCase {
         XCTAssertNoDiagnostics(observability.diagnostics)
 
         let myLib = try XCTUnwrap(plan.targets.first(where: { $0.module.name == "MyLib" })).swift()
-        XCTAssertFalse(myLib.additionalFlags.contains(where: { $0.contains("-tool")}), "flags shouldn't contain tools items")
+        print(myLib.additionalFlags)
+        XCTAssertFalse(myLib.additionalFlags.contains(where: { $0.contains("-tool/include")}), "flags shouldn't contain tools items")
     }
 }