CODEOWNERS: removed people who left the project

Adressing errors reported by
https://github.com/oVirt/ovirt-engine/blob/master/.github/CODEOWNERS

Signed-off-by: Sandro Bonazzola <sandro.bonazzola@gmail.com>

.github/CODEOWNERS

@@ -2,37 +2,37 @@
 # https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
 
 # Default to all maintainers if nothing more specific matches
-*    @ahadas @bennyz @emesika @mwperina @michalskrivanek @oliel @sgratch @smelamud @didib @ljelinkova
+*    @ahadas @bennyz @emesika @mwperina @michalskrivanek @sgratch @smelamud @didib
 
 packaging/dbscripts/    @emesika @mwperina
 *Dao*.java              @emesika @mwperina
 
 backend/manager/modules/**/org/ovirt/engine/core/bll/pm/    @emesika @mwperina
 
-**/*network*   @almusil @eraviv
+**/*network*   @almusil
 
-backend/manager/modules/**/org/ovirt/engine/core/*/hostdeploy/   @dangel101 @mwperina
-backend/manager/modules/**/org/ovirt/engine/core/bll/host/       @dangel101 @mwperina
+backend/manager/modules/**/org/ovirt/engine/core/*/hostdeploy/   @mwperina
+backend/manager/modules/**/org/ovirt/engine/core/bll/host/       @mwperina
 
-backend/manager/modules/**/org/ovirt/engine/core/*/job/          @arso @mwperina
+backend/manager/modules/**/org/ovirt/engine/core/*/job/          @mwperina
 
 backend/manager/modules/**/org/ovirt/engine/core/bll/storage/    @bennyz @ahadas
 backend/manager/modules/**/org/ovirt/engine/core/bll/snapshots/  @bennyz @ahadas
 backend/manager/modules/**/org/ovirt/engine/core/common/businessentities/storage/  @bennyz @ahadas
 backend/manager/modules/**/org/ovirt/engine/core/bll/validator/storage/            @bennyz @ahadas
 
-**/*vms*    @ahadas @ljelinkova @smelamud
+**/*vms*    @ahadas @smelamud
 
-restapi/    @oliel @mwperina
+restapi/    @mwperina
 
 ovirt-engine.spec.in    @didib @sandrobonazzola @mwperina
 
 Makefile                @didib @sandrobonazzola @mwperina
 
 packaging/setup    @didib @sandrobonazzola
 
-pom.xml    @arso @mwperina
+pom.xml    @mwperina
 
-packaging/ansible-runner-service-project/    @dangel101 @mwperina
+packaging/ansible-runner-service-project/    @mwperina
 
-frontend    @sgratch @ljelinkova
+frontend    @sgratch