GEODE-10467: Remove unneeded scripts

Remove likely-to-become-outdated copies of release scripts to ensure
they are not run by accident from a branch (they should always be run
from develop).

Also remove CODEOWNERS to avoid the confusion of GitHub showing owner
names like on develop, but codeowner reviews not actually being
required (due to lack of branch protection or minimum review count on
support branches)

Author: JinwooHwang

dev-tools/release/README.md

@@ -1,31 +1 @@
-# geode/dev-tools/release
-This directory contains scripts to help create a release of Geode and manage branches.
-
-Not all release steps have scripts.  Please follow all instructions as documented in the wiki: [Releasing Apache Geode](https://cwiki.apache.org/confluence/display/GEODE/Releasing+Apache+Geode).
-
-These scripts are intended to be run from the parent directory of your geode develop checkout, e.g.:
-
-    $ cd ..
-    $ geode/dev-tools/release/foo.sh
-
-## Overview of scripts
-
-**license\_review.sh** compares versions with a previous release and/or checks that all bundled dependencies are noted in appropriate LICENSE file
-
-**create\_support\_branches.sh** cuts support/x.y from develop for all projects and walks you through creating pipelines and setting version numbers
-
-**set\_copyright.sh** updates the copyright year
-
-**set\_versions.sh** updates files that need to contain the version number planned for the next release from this support branch
-
-**prepare\_rc.sh** Checks out the various geode repos, builds a release candidate, and publishes to nexus staging repo
-
-**commit\_rc.sh** Pushes the tags and artifacts staged by prepare\_rc.sh and then runs print\_rc\_email.sh
-
-**print\_rc\_email.sh** Generates an email to send to the dev list announcing a release candidate
-
-**promote\_rc.sh** Tags an RC as the final release, builds docker images, merges to master, uploads to mirrors, and starts the brew process
-
-**print\_annouce\_email.sh** Generates an email to send to all lists announcing a release
-
-**end\_of\_support.sh** cleans up pipelines and branches after N-2 support lifetime is reached
+See [Releasing Apache Geode](https://cwiki.apache.org/confluence/display/GEODE/Releasing+Apache+Geode)