Revert "Merge branch '421376-part-1-move-history-button' into 'master'"

app/assets/javascripts/pages/projects/blob/show/index.js

app/assets/javascripts/repository/components/header_area.vue

...ripts/repository/components/header_area/blob_controls.vue

app/assets/javascripts/repository/components/last_commit.vue

app/assets/javascripts/repository/index.js

app/assets/javascripts/repository/init_header_app.js

app/assets/stylesheets/pages/commits.scss

app/views/projects/_files.html.haml

app/views/projects/blob/_blob.html.haml

app/views/projects/blob/_breadcrumb.html.haml

app/views/projects/commits/_commit.html.haml

app/views/projects/tree/_tree_header.html.haml

spec/features/projects/tree/tree_show_spec.rb

...ository/components/__snapshots__/last_commit_spec.js.snap

spec/frontend/repository/components/header_area_spec.js

spec/frontend/repository/components/last_commit_spec.js

spec/views/projects/commits/_commit.html.haml_spec.rb