Remove unused LOCAL_LDLIBS.

Change-Id: If00ca92124b76497159dc998a44e5a6377577797
diff --git a/Android.mk b/Android.mk
index 0dab368..42b19ab 100644
--- a/Android.mk
+++ b/Android.mk
@@ -29,8 +29,6 @@
 
 LOCAL_CFLAGS += -Wall -Werror
 
-LOCAL_LDLIBS += -lpthread
-
 LOCAL_C_INCLUDES += \
 	$(base)/include/utils