fix build after merge

Change-Id: I6f5bcb6ac11c0726e312021146c9f378bc0010c5
diff --git a/modules/vehicle/vehicle.c b/modules/vehicle/vehicle.c
index b5ea444..69bfad3 100644
--- a/modules/vehicle/vehicle.c
+++ b/modules/vehicle/vehicle.c
@@ -290,13 +290,11 @@
 }
 
 void print_subscribe_info(vehicle_device_impl_t* impl) {
-    char buf[100];
     int i;
     for (i = 0; i < sizeof(CONFIGS) / sizeof(vehicle_prop_config_t); i++) {
         subscription_t* sub = (subscription_t*)CONFIGS[i].hal_data;
         if (sub != NULL) {
-            sprintf(buf, "prop: %d rate: %f", sub->prop, sub->sample_rate);
-            ALOGD(buf);
+            ALOGD("prop: %d rate: %f", sub->prop, sub->sample_rate);
         }
     }
 }
@@ -391,7 +389,7 @@
             ALOGD("exiting subscription request here.");
             // Do any cleanup here.
             pthread_mutex_unlock(&sub->lock);
-            return 0;
+            return;
         }
         struct timespec now;
         clock_gettime(CLOCK_REALTIME, &now);