Drop one of duplicated classname from Projects

limit-container-width classname is duplicated in two of the parent
and child elements.  As the child element is not relevant to any of
CSS rules, we can safely remove the child element to reduce DOM size.
Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

app/views/projects/empty.html.haml

@@ -5,72 +5,71 @@
 
 = render partial: 'flash_messages', locals: { project: @project }
 
-%div{ class: [("limit-container-width" unless fluid_layout)] }
-  = render "home_panel"
+= render "home_panel"
 
-  %h4.gl-mt-0.gl-mb-3
-    = _('The repository for this project is empty')
+%h4.gl-mt-0.gl-mb-3
+  = _('The repository for this project is empty')
 
-  - if @project.can_current_user_push_code?
-    %p.gl-mb-0
-      = _('You can get started by cloning the repository or start adding files to it with one of the following options.')
+- if @project.can_current_user_push_code?
+  %p.gl-mb-0
+    = _('You can get started by cloning the repository or start adding files to it with one of the following options.')
 
-  .project-buttons.qa-quick-actions
-    .project-clone-holder.d-block.d-md-none.mt-2.mr-2
-      = render "shared/mobile_clone_panel"
+.project-buttons.qa-quick-actions
+  .project-clone-holder.d-block.d-md-none.mt-2.mr-2
+    = render "shared/mobile_clone_panel"
 
-    .project-clone-holder.d-none.d-md-inline-block.mt-2.mr-2.float-left
-      = render "projects/buttons/clone"
-    = render 'stat_anchor_list', anchors: @project.empty_repo_statistics_buttons
+  .project-clone-holder.d-none.d-md-inline-block.mt-2.mr-2.float-left
+    = render "projects/buttons/clone"
+  = render 'stat_anchor_list', anchors: @project.empty_repo_statistics_buttons
 
-  - if can?(current_user, :push_code, @project)
-    .empty-wrapper.gl-mt-7
-      %h3#repo-command-line-instructions.page-title-empty
-        = _('Command line instructions')
-      %p
-        = _('You can also upload existing files from your computer using the instructions below.')
-      .git-empty.js-git-empty
-        %fieldset
-          %h5= _('Git global setup')
-          %pre.bg-light
-            :preserve
-              git config --global user.name "#{h git_user_name}"
-              git config --global user.email "#{h git_user_email}"
+- if can?(current_user, :push_code, @project)
+  .empty-wrapper.gl-mt-7
+    %h3#repo-command-line-instructions.page-title-empty
+      = _('Command line instructions')
+    %p
+      = _('You can also upload existing files from your computer using the instructions below.')
+    .git-empty.js-git-empty
+      %fieldset
+        %h5= _('Git global setup')
+        %pre.bg-light
+          :preserve
+            git config --global user.name "#{h git_user_name}"
+            git config --global user.email "#{h git_user_email}"
 
-        %fieldset
-          %h5= _('Create a new repository')
-          %pre.bg-light
-            :preserve
-              git clone #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
-              cd #{h @project.path}
-              touch README.md
-              git add README.md
-              git commit -m "add README"
-            - if @project.can_current_user_push_to_default_branch?
-              %span><
-                git push -u origin #{ default_branch_name }
+      %fieldset
+        %h5= _('Create a new repository')
+        %pre.bg-light
+          :preserve
+            git clone #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
+            cd #{h @project.path}
+            touch README.md
+            git add README.md
+            git commit -m "add README"
+          - if @project.can_current_user_push_to_default_branch?
+            %span><
+              git push -u origin #{ default_branch_name }
 
-        %fieldset
-          %h5= _('Push an existing folder')
-          %pre.bg-light
-            :preserve
-              cd existing_folder
-              git init
-              git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
-              git add .
-              git commit -m "Initial commit"
-            - if @project.can_current_user_push_to_default_branch?
-              %span><
-                git push -u origin #{ default_branch_name }
+      %fieldset
+        %h5= _('Push an existing folder')
+        %pre.bg-light
+          :preserve
+            cd existing_folder
+            git init
+            git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
+            git add .
+            git commit -m "Initial commit"
+          - if @project.can_current_user_push_to_default_branch?
+            %span><
+              git push -u origin #{ default_branch_name }
 
-        %fieldset
-          %h5= _('Push an existing Git repository')
-          %pre.bg-light
-            :preserve
-              cd existing_repo
-              git remote rename origin old-origin
-              git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
-            - if @project.can_current_user_push_to_default_branch?
-              %span><
-                git push -u origin --all
-                git push -u origin --tags
+      %fieldset
+        %h5= _('Push an existing Git repository')
+        %pre.bg-light
+          :preserve
+            cd existing_repo
+            git remote rename origin old-origin
+            git remote add origin #{ content_tag(:span, default_url_to_repo, class: 'js-clone')}
+          - if @project.can_current_user_push_to_default_branch?
+            %span><
+              git push -u origin --all
+              git push -u origin --tags

changelogs/unreleased/246904-drop-limit-container-width-from-projects.yml

+---
+title: Drop one of duplicated classname from Projects
+merge_request: 41831
+author: Takuya Noguchi
+type: performance