cleanup: remove dead gobuilder and equinox stuff

License: MIT
Signed-off-by: Lars Gierth <larsg@systemli.org>

cmd/ipfs/.gobuilder.yml

----
-build_matrix:
-  all:
-  windows:
-    build_tags:
-      - nofuse
-artifacts:
-  README.md: dist/README.md
-  LICENSE: dist/LICENSE
-  install.sh: dist/install.sh
-notify:
-  - type: dockerhub
-    target: U2FsdGVkX1/90hvy0xKfT+CndVAJxbKWohRxiTWUq/FCG/5noNAJlFrSl8HviHga75vIJayCFryz0p+KPxf/6lEDm9S3xV4R0HZAZd7XSXKq9WvHAz2Np2gPglKAL5A/voagmmUtfev4aTVVqzKBFg==
-    filter: success
-no_go_fmt: true

cmd/ipfs/equinox.yaml

----
-equinox-account: CHANGEME
-equinox-secret: CHANGEME
-equinox-app: CHANGEME
-channel: stable
-private-key: equinox-priv