remove test woodpeeker pipeline

.woodpecker/my-first-workflow.yaml

@@ -1,15 +0,0 @@
-when:
-  - event: push
-    branch: fresh-start
-
-steps:
-  - name: build
-    image: debian
-    commands:
-      - echo "This is the build step"
-      - echo "echo hello world" > executable
-  - name: a-test-step
-    image: golang:1.16
-    commands:
-      - echo "Testing ..."
-      - sh executable