update temporal comparisons (#533)

Signed-off-by: Tihomir Surdilovic <tihomir@temporal.io>

Author: tsurdilo

comparisons/README.md

@@ -6,5 +6,4 @@ Following comparison documents are available:
 * [Brigade comparison examples](comparison-brigade.md)
 * [Google Cloud Workflow comparison examples](comparison-google-cloud-workflows.md)
 * [Temporal comparison examples](comparison-temporal.md)
-* [Cadence comparison examples](comparison-cadence.md)
 * [BPMN2 comparison examples](comparison-bpmn.md)