Deleting models that specify a non-null return value

Reviewed By: jeremydubreil

Differential Revision: D2648163

fb-gh-sync-id: 4df2456

infer/models/java/src/com/google/common/collect/ImmutableList.java

@@ -1,24 +0,0 @@
-/*
-* Copyright (c) 2013 - present Facebook, Inc.
-* All rights reserved.
-*
-* This source code is licensed under the BSD style license found in the
-* LICENSE file in the root directory of this source tree. An additional grant
-* of patent rights can be found in the PATENTS file in the same directory.
-*/
-
-package com.google.common.collect;
-
-import com.facebook.infer.models.InferBuiltins;
-
-public class ImmutableList<E> {
-
-  private static final ImmutableList<Object> EMPTY = new ImmutableList<Object>();
-
-  @SuppressWarnings("unchecked")
-  public static <E> ImmutableList<E> of() {
-    InferBuiltins.assume(EMPTY != null);
-    return (ImmutableList<E>) EMPTY;
-  }
-
-}

infer/models/java/src/java/nio/channels/FileChannel.java

@@ -28,9 +28,4 @@ public abstract class FileChannel extends AbstractInterruptibleChannel {
 
     private native FileLock getFileLock();
 
-    FileLock lock() {
-        FileLock f = getFileLock();
-        InferBuiltins.assume(f != null);
-        return f;
-    }
 }