Code mismatch between CE spec and EE graph_component_spec.js

graph_component_spec.js has a big mismatch between CE and EE.

CE: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/spec/javascripts/pipelines/graph/graph_component_spec.js
EE: https://gitlab.com/gitlab-org/gitlab-ee/blob/master/spec/javascripts/pipelines/graph/graph_component_spec.js

We should try consolidate the changes to minimize conflicts in CE => EE