Don't copy unused configuration when releasing

Bug: 147485959
Change-Id: I9ffd656f5e742fcfa0ec95a7d49ea9211b646b73
diff --git a/tools/r8_release.py b/tools/r8_release.py
index 3e743b3..c3aff38 100755
--- a/tools/r8_release.py
+++ b/tools/r8_release.py
@@ -362,15 +362,12 @@
       g4_open('src.jar')
       g4_open('lib.jar')
       g4_open('lib.jar.map')
-      g4_open('desugar_jdk_libs.json')
       g4_open('desugar_jdk_libs_configuration.jar')
       download_file(options.version, 'r8-full-exclude-deps.jar', 'full.jar')
       download_file(options.version, 'r8-src.jar', 'src.jar')
       download_file(options.version, 'r8lib-exclude-deps.jar', 'lib.jar')
       download_file(
           options.version, 'r8lib-exclude-deps.jar.map', 'lib.jar.map')
-      download_file(options.version, 'desugar_jdk_libs.json',
-                    'desugar_jdk_libs.json')
       download_file(options.version, 'desugar_jdk_libs_configuration.jar',
                     'desugar_jdk_libs_configuration.jar')
       g4_open('METADATA')