Make library_desugar a non-composite module.

Change-Id: Ia4db35869685d55fa041ae3f2d93135f21498c65

d8_r8/library_desugar/settings.gradle.kts

diff --git a/d8_r8/library_desugar/settings.gradle.kts b/d8_r8/library_desugar/settings.gradle.kts
deleted file mode 100644
index 2638d32..0000000
--- a/d8_r8/library_desugar/settings.gradle.kts
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2023, the R8 project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-pluginManagement {
-  repositories {
-    maven { url = uri("../../third_party/dependencies_plugin") }
-    maven { url = uri("../../third_party/dependencies") }
-  }
-}
-
-dependencyResolutionManagement {
-  repositories { maven { url = uri("../../third_party/dependencies") } }
-}
-
-rootProject.name = "library_desugar"

settings.gradle.kts

diff --git a/settings.gradle.kts b/settings.gradle.kts
index c4de167..63797c6 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -50,7 +50,9 @@
 
 project(":dist").projectDir = file("d8_r8/dist")
 
-includeBuild(rootProject.projectDir.resolve("d8_r8/library_desugar"))
+include(":library_desugar")
+
+project(":library_desugar").projectDir = file("d8_r8/library_desugar")
 
 include(":testbase")