Amend HDFS-799. Remove unnecessary tls check. Contributed by Colin Patrick McCabe

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1361563 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/src/main/native/hdfsJniHelper.c

@@ -74,8 +74,6 @@ static void hdfsThreadDestructor(void *v)
     JNIEnv *env = tls->env;
     jint ret;
 
-    if (!tls)
-        return;
     ret = (*env)->GetJavaVM(env, &vm);
     if (ret) {
         fprintf(stderr, "hdfsThreadDestructor: GetJavaVM failed with "