Fix build.

Change-Id: Id8eb3953e19b1f9954702aa9985f7ea4c3936c9f
diff --git a/native/jni/Android.mk b/native/jni/Android.mk
index 2b409d0..35620a4 100644
--- a/native/jni/Android.mk
+++ b/native/jni/Android.mk
@@ -74,7 +74,6 @@
         structure/dictionary_structure_with_buffer_policy_factory.cpp) \
     $(addprefix suggest/policyimpl/dictionary/bigram/, \
         bigram_list_read_write_utils.cpp \
-        dynamic_bigram_list_policy.cpp \
         ver4_bigram_list_policy.cpp) \
     $(addprefix suggest/policyimpl/dictionary/structure/v2/, \
         patricia_trie_policy.cpp \