Delete template-statemachine.md

docs/20-Requirement-management/templates/template-statemachine.md

-# State machine - template
-
-This is an example of drawing a state machine using Mermaid-script. 
-
-```mermaid
-graph TD
-    Start-->|This is the text|Working
-    Working-->|Ask for feedback|Feedback
-    Feedback-->|Working based on the feedback|Working
-    Working-->|Think you are ready?|Review
-    Review-->|Accepted|Delivery
-    Delivery-->|You are free!!|Home!
-    Review-->|Needs more work|Working
-
-```
-