Fix CODEOWNERS (elastic#205302)

obs-ux-onboarding-team no longer resolves.

.github/CODEOWNERS

@@ -3325,7 +3325,7 @@ x-pack/solutions/observability/plugins/observability @elastic/obs-ux-management-
 x-pack/solutions/observability/plugins/observability_ai_assistant_app @elastic/obs-ai-assistant
 x-pack/solutions/observability/plugins/observability_ai_assistant_management @elastic/obs-ai-assistant
 x-pack/solutions/observability/plugins/observability_logs_explorer @elastic/obs-ux-logs-team
-x-pack/solutions/observability/plugins/observability_onboarding @elastic/obs-ux-logs-team @elastic/obs-ux-onboarding-team
+x-pack/solutions/observability/plugins/observability_onboarding @elastic/obs-ux-logs-team
 x-pack/solutions/observability/plugins/observability_shared @elastic/observability-ui
 x-pack/solutions/observability/plugins/profiling @elastic/obs-ux-infra_services-team
 x-pack/solutions/observability/plugins/profiling_data_access @elastic/obs-ux-infra_services-team

packages/kbn-code-owners/src/code_owner_areas.ts

@@ -54,7 +54,6 @@ export const CODE_OWNER_AREA_MAPPINGS: { [area in CodeOwnerArea]: string[] } = {
     'elastic/obs-ux-infra_services-team',
     'elastic/obs-ux-logs-team',
     'elastic/obs-ux-management-team',
-    'elastic/obs-ux-onboarding-team',
     'elastic/observability-design',
     'elastic/observability-ui',
     'elastic/observablt-robots',