Refactor the Makefile to avoid recursive Make.

Recursive make is difficult to follow and debug. Drop this by using
internal functions, which, while difficult, are easier than trying to
following recursive invokations.

Further simplify the Makefile by collapsing the image bits and removing
the tools/vm directory, which is effectively unused.

Fixes #4952

PiperOrigin-RevId: 346569133

1 files changed, 0 insertions, 27 deletions

diff --git a/tools/vm/test.cc b/tools/vm/test.cc
deleted file mode 100644
index c0ceacda1..000000000
--- a/tools/vm/test.cc
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2020 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "gtest/gtest.h"
-
-namespace {
-
-TEST(Image, Sanity0) {
-  // Do nothing (in shard 0).
-}
-
-TEST(Image, Sanity1) {
-  // Do nothing (in shard 1).
-}
-
-}  // namespace