Step down from maintainership (#161)

.github/CODEOWNERS

@@ -4,7 +4,7 @@
 # These owners will be the default owners for everything in the repo.
 # Unless a later match takes precedence, @global-owner1 and @global-owner2
 # will be requested for review when someone opens a pull request.
-*       @kakkoyun @limayekaiwalya @seandtaber
+*       @limayekaiwalya @seandtaber
 
 # Order is important; the last matching pattern takes the most precedence.
 # When someone opens a pull request that only modifies JS files, only @js-owner