We don't have CXX_BARE any more

Now we have split CXX_WRAPPER from TARGET_CXX and CXX_BARE isn't needed
any more.

Bug: 22612634
Change-Id: I52c78b0d1b325910e875a786d17f780731778b4b
(cherry-pick from commit 9d11a7087c860195bf23f2825a7fe70d43ff7b78)
diff --git a/tests/Android.mk b/tests/Android.mk
index 4d9a136..21deb5c 100644
--- a/tests/Android.mk
+++ b/tests/Android.mk
@@ -408,7 +408,7 @@
 
 LOCAL_CXX = $(LOCAL_PATH)/file-check-cxx \
     $(HOST_OUT_EXECUTABLES)/FileCheck \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)CXX_BARE) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_CXX) \
     GCC \
 
 LOCAL_CLANG := false