Revert "[tmp] Point at dev branch for sto"

This reverts commit 6829947.
Depends-On: infrawatch/smart-gateway-operator#143

ci/build_stf.yml

@@ -41,7 +41,6 @@
  __service_telemetry_storage_ephemeral_enabled: true
  __working_branch: master
  base_dir: "{{ sto_dir }}/build"
- sgo_branch: "add_logs_to_generate_bundle"
  new_operator_sdk_version: "v0.19.4"
  __service_telemetry_observability_strategy: "use_redhat"
  # Is this the one to use for CRC?