Remove unused feature flag

Removes the unused source editor FF + associated code

Changelog: removed

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

@@ -19,21 +19,17 @@
       - input_options = { label: _('File name'), id: 'file_name', name: 'file_name', value: params[:file_name] || '', required: true, placeholder: "Filename", testid: 'file-name-field', class: 'new-file-name js-file-path-name-input' }
       = render 'filepath_form', input_options: input_options
 
-    - if Feature.enabled?(:source_editor_toolbar, current_user)
-      #editor-toolbar
-
-    - else
-      .file-buttons.gl-flex.gl-items-center.gl-justify-end
-        - if is_markdown
-          .md-header.gl-flex.gl-px-2.gl-rounded-base.gl-mx-2.gl-mt-2
-            .gl-flex.gl-items-center.gl-flex-wrap.gl-justify-between
-              .md-header-toolbar.gl-flex.gl-py-2.gl-flex-wrap{ class: "!gl-m-0" }
-                = render 'shared/blob/markdown_buttons', supports_file_upload: false
-        %span.soft-wrap-toggle
-          = render Pajamas::ButtonComponent.new(icon: 'soft-unwrap', button_options: { class: 'no-wrap' }) do
-            = _("No wrap")
-          = render Pajamas::ButtonComponent.new(icon: 'soft-wrap', button_options: { class: 'soft-wrap' }) do
-            = _("Soft wrap")
+    .file-buttons.gl-flex.gl-items-center.gl-justify-end
+      - if is_markdown
+        .md-header.gl-flex.gl-px-2.gl-rounded-base.gl-mx-2.gl-mt-2
+          .gl-flex.gl-items-center.gl-flex-wrap.gl-justify-between
+            .md-header-toolbar.gl-flex.gl-py-2.gl-flex-wrap{ class: "!gl-m-0" }
+              = render 'shared/blob/markdown_buttons', supports_file_upload: false
+      %span.soft-wrap-toggle
+        = render Pajamas::ButtonComponent.new(icon: 'soft-unwrap', button_options: { class: 'no-wrap' }) do
+          = _("No wrap")
+        = render Pajamas::ButtonComponent.new(icon: 'soft-wrap', button_options: { class: 'soft-wrap' }) do
+          = _("Soft wrap")
 
   .file-editor.code
     .js-edit-mode-pane#editor{ data: { 'editor-loading': true, testid: 'source-editor-preview-container', ref: ref} }<

config/feature_flags/development/source_editor_toolbar.yml

----
-name: source_editor_toolbar
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/82304
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/354748
-milestone: '14.9'
-type: development
-group: group::source code
-default_enabled: false

lib/gitlab/gon_helper.rb

@@ -81,7 +81,6 @@ def add_gon_variables
 
       # Initialize gon.features with any flags that should be
       # made globally available to the frontend
-      push_frontend_feature_flag(:source_editor_toolbar)
       push_frontend_feature_flag(:vscode_web_ide, current_user)
       push_frontend_feature_flag(:ui_for_organizations, current_user)
       push_frontend_feature_flag(:organization_switching, current_user)

spec/features/projects/blobs/edit_spec.rb

@@ -107,13 +107,7 @@ def has_toolbar_buttons
         end
       end
 
-      it "has defined set of toolbar buttons when the flag is on" do
-        stub_feature_flags(source_editor_toolbar: true)
-        has_toolbar_buttons
-      end
-
-      it "has defined set of toolbar buttons when the flag is off" do
-        stub_feature_flags(source_editor_toolbar: false)
+      it "has defined set of toolbar buttons" do
         has_toolbar_buttons
       end
     end