Change maintainer for personal repo

Signed-off-by: Shivansh Arora <hishiv@amazon.com>

.github/CODEOWNERS

@@ -1,5 +1,5 @@
 # CODEOWNERS manages notifications, not PR approvals
-# For PR approvals see /.github/workflows/maintainer-approval.yml 
+# For PR approvals see /.github/workflows/maintainer-approval.yml
 
 # Files have a single rule applied, the last match decides the owner
 # If you would like to more specifically apply ownership, include existing owner in new sub fields
@@ -11,17 +11,4 @@
 #   3. Use the command palette to run the CODEOWNERS: Show owners of current file command, which will display all code owners for the current file.
 
 # Default ownership for all repo files
-* @abbashus @adnapibar @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kartg @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @reta @Rishikesh1159 @ryanbogan @sachinpkale @saratvemulapalli @setiah @shwetathareja @sohami @tlfeng @VachaShah
-
-/modules/transport-netty4/ @peternied
-
-/plugins/identity-shiro/ @peternied
-
-/server/src/main/java/org/opensearch/extensions/ @peternied
-/server/src/main/java/org/opensearch/identity/ @peternied
-/server/src/main/java/org/opensearch/threadpool/ @peternied
-/server/src/main/java/org/opensearch/transport/ @peternied
-
-/.github/ @peternied
-
-/MAINTAINERS.md @abbashus @adnapibar @anasalkouz @andrross @Bukhtawar @CEHENKLE @dblock @dbwiddis @dreamer-89 @gbbafna @kartg @kotwanikunal @mch2 @msfroh @nknize @owaiskazi19 @peternied @reta @Rishikesh1159 @ryanbogan @sachinpkale @saratvemulapalli @setiah @shwetathareja @sohami @tlfeng @VachaShah
+* @shiv0408