Move libutils to libc++.

Bug: 15193147
Change-Id: I85aff3bcabb5ee3c8be9918b7bef0fd1bbfa98e3
diff --git a/libutils/Android.mk b/libutils/Android.mk
index 0376c8c..e738c15 100644
--- a/libutils/Android.mk
+++ b/libutils/Android.mk
@@ -104,8 +104,6 @@
         liblog \
         libdl
 
-include external/stlport/libstlport.mk
-
 LOCAL_MODULE:= libutils
 include $(BUILD_STATIC_LIBRARY)
 
@@ -121,8 +119,6 @@
         liblog
 LOCAL_CFLAGS := -Werror
 
-include external/stlport/libstlport.mk
-
 include $(BUILD_SHARED_LIBRARY)
 
 # Include subdirectory makefiles