remove automated bump.sh export from travis script.

  The use of `yq` seems broken, this is not essential for the release
  for it can be done manually.

.travis.yml

@@ -49,12 +49,15 @@ jobs:
     if: type != pull_request AND (tag =~ ^v OR commit_message =~ /TRAVIS_TRIGGER_RELEASE/)
     name: "Executables"
     script:
-    # Upload swagger to bump.sh
-    - gem install bump-cli
-    - sudo snap install yq
-    - yq r -j specifications/api/swagger.yaml > specifications/api/swagger.json
-    - bump validate --doc $BUMP_SH_DOC_ID --token $BUMP_SH_TOKEN specifications/api/swagger.json
-    - bump deploy --doc $BUMP_SH_DOC_ID --token $BUMP_SH_TOKEN specifications/api/swagger.json
+     # # Upload swagger to bump.sh
+     # FIXME: This currently fails with 'The command "yq r -j specifications/api/swagger.yaml > specifications/api/swagger.json" exited with 1.'
+     # See: https://travis-ci.org/github/input-output-hk/cardano-wallet/jobs/754099465#L213
+     #
+     # - gem install bump-cli
+     # - sudo snap install yq
+     # - yq r -j specifications/api/swagger.yaml > specifications/api/swagger.json
+     # - bump validate --doc $BUMP_SH_DOC_ID --token $BUMP_SH_TOKEN specifications/api/swagger.json
+     # - bump deploy --doc $BUMP_SH_DOC_ID --token $BUMP_SH_TOKEN specifications/api/swagger.json
 
     # Fetch the builds from Hydra
     - nvm install 12.18.3 && nvm use 12.18.3