Remove some traces of removed jobs from the circle ci config

Summary:
This fixes the following validation errors:

Error calling workflow: 'release': Cannot find a definition for job named verify-release
Job 'publish-to-github' requires 'build-for-release', which is the name of 0 other jobs in workflow 'release'

Reviewed By: samodom

Differential Revision: D31535351

fbshipit-source-id: 5d3ff4ecf84f666b2592916ed67bf0dcba46c05e

.circleci/config.yml

@@ -86,13 +86,6 @@ workflows:
           <<: *onlyRunOnTags
       - publish-to-github:
           <<: *onlyRunOnTags
-          requires:
-            - build-for-release
       - publish-cocoapods:
           <<: *onlyRunOnTags
           <<: *requiresSetup
-      - verify-release:
-          <<: *onlyRunOnTags
-          requires:
-            - publish-cocoapods
-            - publish-to-github