Kill HAVE_ANDROID_PTHREAD_SETNAME_NP.

All it means is __BIONIC__ anyway.

Change-Id: I3ef4ef1a14d0a77c75539f2ab533ee2f3964e1a5
diff --git a/runtime/utils.cc b/runtime/utils.cc
index 4c52229..d7e215b 100644
--- a/runtime/utils.cc
+++ b/runtime/utils.cc
@@ -1000,7 +1000,7 @@
   } else {
     s = thread_name + len - 15;
   }
-#if defined(HAVE_ANDROID_PTHREAD_SETNAME_NP)
+#if defined(__BIONIC__)
   // pthread_setname_np fails rather than truncating long strings.
   char buf[16];       // MAX_TASK_COMM_LEN=16 is hard-coded into bionic
   strncpy(buf, s, sizeof(buf)-1);