Remove building of compat jars

Bug: 145339280
Change-Id: Iabc4727526c00df50b80fde25769a83b10122560
diff --git a/tools/test_android_cts.py b/tools/test_android_cts.py
index c07a4a0..fa814bc 100755
--- a/tools/test_android_cts.py
+++ b/tools/test_android_cts.py
@@ -147,7 +147,7 @@
   if args.tool == 'd8':
     use_d8 = 'USE_D8=true'
 
-  gradle.RunGradle(['d8', 'compatdx'])
+  gradle.RunGradle(['d8'])
 
   setup_and_clean(args.tool == 'd8', args.clean_dex)