Move to android.support.test as CTS instrumentation runner.

Also do the following related cleanup
- Remove references to deprecated BrokenTest and KnownFailure
- Switch CTS tests to build against SDK and not private
android.test.runner where possible

Bug: 12924356

Change-Id: If6151b836456eec4838f8d7d6e11c9834c007fca
diff --git a/tools/cts-reference-app-lib/Android.mk b/tools/cts-reference-app-lib/Android.mk
index 8341970..fae85b4 100644
--- a/tools/cts-reference-app-lib/Android.mk
+++ b/tools/cts-reference-app-lib/Android.mk
@@ -24,7 +24,7 @@
 # and when built explicitly put it in the data partition
 LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_APPS)
 
-LOCAL_JAVA_LIBRARIES := android.test.runner
+LOCAL_SDK_VERSION := current
 
 LOCAL_MODULE := android.cts.refapp