Revert "Fix integration test for Xcode 13 (#3686)"

This reverts commit 376fd15.

Author: neonichu

IntegrationTests/Fixtures/XCBuild/Libraries/Bar/Package.swift

@@ -5,7 +5,7 @@ import PackageDescription
 let package = Package(
     name: "Bar",
     products: [
-        .library(name: "BarLibProduct", type: .dynamic, targets: ["BarLib"]),
+        .library(name: "BarLib", type: .dynamic, targets: ["BarLib"]),
     ],
     targets: [
         .target(name: "BarLib"),

IntegrationTests/Fixtures/XCBuild/Libraries/Foo/Package.swift

@@ -5,15 +5,15 @@ import PackageDescription
 let package = Package(
     name: "Foo",
     products: [
-        .library(name: "FooLibProduct", type: .static, targets: ["FooLib"]),
+        .library(name: "FooLib", type: .static, targets: ["FooLib"]),
     ],
     dependencies: [
         .package(path: "../Bar")
     ],
     targets: [
         .target(name: "FooLib", dependencies: ["CFooLib"]),
         .target(name: "CFooLib", dependencies: [
-            .product(name: "BarLibProduct", package: "Bar"),
+            .product(name: "BarLib", package: "Bar"),
         ]),
     ],
     swiftLanguageVersions: [.v4_2, .v5]