Remove framework2

We don't need fraemwork2 split with the multidex framework.jar.

Change-Id: Ifc595b3679946d8958a9282360c7da9bc18e8adc
diff --git a/core/config.mk b/core/config.mk
index 46f9084..ad12fef 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -534,7 +534,7 @@
 
 # allow overriding default Java libraries on a per-target basis
 ifeq ($(TARGET_DEFAULT_JAVA_LIBRARIES),)
-  TARGET_DEFAULT_JAVA_LIBRARIES := core-libart core-junit ext framework framework2
+  TARGET_DEFAULT_JAVA_LIBRARIES := core-libart core-junit ext framework
 endif
 
 TARGET_CPU_SMP ?= true