fix: remove global open api overlay which MUST be kept typescript side

Author: gfyrag

.speakeasy/workflow.yaml

@@ -4,8 +4,6 @@ sources:
     stacks-source:
         inputs:
             - location: ./releases/build/generate.json
-        overlays:
-            - location: ./releases/overlays/shared.overlay.yaml
         output: ./releases/build/openapi-overlaid.yaml
         registry:
             location: registry.speakeasyapi.dev/formance/formance/stacks-source