Remove unused LOCAL_LDLIBS.

Change-Id: Iacd6df6590d997f07dc4c35def7ddc19fc9ec43e
diff --git a/Android.mk b/Android.mk
index 969c53d..9297bf9 100644
--- a/Android.mk
+++ b/Android.mk
@@ -71,10 +71,6 @@
         LOCAL_CFLAGS += -DNO_FALLBACK_FONT
 endif
 
-LOCAL_LDLIBS += -lpthread
-
 LOCAL_MODULE:= libharfbuzz
 
-
-
 include $(BUILD_SHARED_LIBRARY)