Move vold to libc++.

Bug: 15193147
Change-Id: Ib868f1ed8145ca5cbfdb4cd60ed0c47a6182ac62
diff --git a/Android.mk b/Android.mk
index fb43720..d3e3b61 100644
--- a/Android.mk
+++ b/Android.mk
@@ -51,7 +51,7 @@
 LOCAL_STATIC_LIBRARIES := $(common_static_libraries)
 LOCAL_MODULE_TAGS := eng tests
 
-include external/stlport/libstlport.mk
+LOCAL_CXX_STL := libc++
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
@@ -68,7 +68,7 @@
 LOCAL_SHARED_LIBRARIES := $(common_shared_libraries)
 LOCAL_STATIC_LIBRARIES := $(common_static_libraries)
 
-include external/stlport/libstlport.mk
+LOCAL_CXX_STL := libc++
 include $(BUILD_EXECUTABLE)
 
 include $(CLEAR_VARS)