Remove duplicate monitor
Remove duplicate monitor

This appears to be a duplicate of another monitor:
alert_templates/shared/diego/router_emitter_sync_duration_too_high.json.erb

Signed-off-by: Aaron Hurley <6c541e38cb40b4360b80e64c308405691f38e38a@pivotal.io>

pivotal-cf-experimental/datadog-config-oss,pivotal-cf-experimental/datadog-config-oss