Remove unused CodeQuality store

...avascripts/ci/reports/codequality_report/store/actions.js

...avascripts/ci/reports/codequality_report/store/getters.js

.../javascripts/ci/reports/codequality_report/store/index.js

...pts/ci/reports/codequality_report/store/mutation_types.js

...ascripts/ci/reports/codequality_report/store/mutations.js

.../javascripts/ci/reports/codequality_report/store/state.js

...pp/assets/javascripts/codequality_report/store/actions.js

.../assets/javascripts/codequality_report/store/constants.js

...pp/assets/javascripts/codequality_report/store/getters.js

ee/app/assets/javascripts/codequality_report/store/index.js

...ts/javascripts/codequality_report/store/mutation_types.js

.../assets/javascripts/codequality_report/store/mutations.js

ee/app/assets/javascripts/codequality_report/store/state.js

ee/spec/frontend/codequality_report/store/actions_spec.js

ee/spec/frontend/codequality_report/store/getters_spec.js

ee/spec/frontend/codequality_report/store/mutations_spec.js

locale/gitlab.pot

...ntend/ci/reports/codequality_report/store/actions_spec.js

...ntend/ci/reports/codequality_report/store/getters_spec.js

...end/ci/reports/codequality_report/store/mutations_spec.js