Remove redundant NOTICE copied from LICENSE.

Identified using the below shell script:

$ find -H . -name LICENSE -type f -print0 | xargs -0 dirname \
  | while read dir; do \
    if [ -f "${dir}/NOTICE" ] \
        && diff "${dir}/LICENSE" "${dir}/NOTICE" >/dev/null; then \
      echo "${dir}/NOTICE"; \
    fi; \
  done

Now that http://r.android.com/r/1235427 and http://r.android.com/r/1238719 are
merged, LICENSE files copied into NOTICE files are no longer needed.

Bug: 67772237
Bug: 68860345

Test: manually built and diffed before and after system image notices
Change-Id: I1034d91849b0193f285d93454c9660be6c6641e7
diff --git a/NOTICE b/NOTICE
deleted file mode 100644
index 1e65815..0000000
--- a/NOTICE
+++ /dev/null
@@ -1,54 +0,0 @@
-Copyright 2017- Paul Ganssle <paul@ganssle.io>
-Copyright 2017- dateutil contributors (see AUTHORS file)
-
-   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.
-
-The above license applies to all contributions after 2017-12-01, as well as
-all contributions that have been re-licensed (see AUTHORS file for the list of
-contributors who have re-licensed their code).
---------------------------------------------------------------------------------
-dateutil - Extensions to the standard Python datetime module.
-
-Copyright (c) 2003-2011 - Gustavo Niemeyer <gustavo@niemeyer.net>
-Copyright (c) 2012-2014 - Tomi Pieviläinen <tomi.pievilainen@iki.fi>
-Copyright (c) 2014-2016 - Yaron de Leeuw <me@jarondl.net>
-Copyright (c) 2015-     - Paul Ganssle <paul@ganssle.io>
-Copyright (c) 2015-     - dateutil contributors (see AUTHORS file)
-
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright notice,
-      this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright notice,
-      this list of conditions and the following disclaimer in the documentation
-      and/or other materials provided with the distribution.
-    * Neither the name of the copyright holder nor the names of its
-      contributors may be used to endorse or promote products derived from
-      this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-The above BSD License Applies to all code, even that also covered by Apache 2.0.
\ No newline at end of file