Revert "old-cts: Add testng and libcoreoj test support"

This reverts commit 1d4ad6a52724eee2f85b07e113909505d6c26ea0.

This topic has been reverted because it causes build flakiness and
bogus verification failures on most active changes.

Change-Id: I4a935c9a861e063e28ddc1c35bc3fa015174e81d
diff --git a/core/tasks/old-cts.mk b/core/tasks/old-cts.mk
index 70a6394..904f5b2 100644
--- a/core/tasks/old-cts.mk
+++ b/core/tasks/old-cts.mk
@@ -65,9 +65,7 @@
 
 CTS_TEST_JAR_LIST := \
 	cts-junit \
-	CtsJdwp \
-	cts-testng \
-	CtsLibcoreOj
+	CtsJdwp
 
 # Depend on the full package paths rather than the phony targets to avoid
 # rebuilding the packages every time.