Remove hello world sample (#79)

diff --git a/examples/remotebuildexecution/hello_world/cc/BUILD b/examples/remotebuildexecution/hello_world/cc/BUILD
deleted file mode 100644
index b95c499..0000000
--- a/examples/remotebuildexecution/hello_world/cc/BUILD
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2016 The Bazel Authors. All rights reserved.
-#
-# 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.
-
-package(default_visibility = ["//visibility:public"])
-
-cc_binary(
-    name = "hello_world",
-    srcs = ["hello_world.cc"],
-)
-
-# This "test" simply executes the "hello world" program, printing to the output
-# file (bazel-testlogs/hello_world/test.log).
-cc_test(
-    name = "hello_world_test",
-    srcs = ["hello_world.cc"],
-)
diff --git a/examples/remotebuildexecution/hello_world/cc/hello_world.cc b/examples/remotebuildexecution/hello_world/cc/hello_world.cc
deleted file mode 100644
index e7bd7a9..0000000
--- a/examples/remotebuildexecution/hello_world/cc/hello_world.cc
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2016 The Bazel Authors. All rights reserved.
-//
-// 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 <iostream>
-
-int main(int argc, char** argv) {
-  std::cout << "Hello, world!" << std::endl;
-  return 0;
-}