remove button class size alteration from revert and cherry pick links

app/helpers/commits_helper.rb

@@ -131,7 +131,7 @@ module CommitsHelper
     return unless current_user
 
     tooltip = "Revert this #{commit.change_type_title(current_user)} in a new merge request" if has_tooltip
-    btn_class = "btn btn-warning btn-#{btn_class}" unless btn_class.nil?
+    btn_class = "btn btn-#{btn_class}" unless btn_class.nil?
 
     if can_collaborate_with_project?
       link_to 'Revert', '#modal-revert-commit', 'data-toggle' => 'modal', 'data-container' => 'body', title: (tooltip if has_tooltip), class: "#{btn_class} #{'has-tooltip' if has_tooltip}"
@@ -145,7 +145,7 @@ module CommitsHelper
     return unless current_user
 
     tooltip = "Cherry-pick this #{commit.change_type_title(current_user)} in a new merge request" if has_tooltip
-    btn_class = "btn btn-default btn-#{btn_class}" unless btn_class.nil?
+    btn_class = "btn btn-#{btn_class}" unless btn_class.nil?
 
     if can_collaborate_with_project?
       link_to 'Cherry-pick', '#modal-cherry-pick-commit', 'data-toggle' => 'modal', 'data-container' => 'body', title: (tooltip if has_tooltip), class: "#{btn_class} #{'has-tooltip' if has_tooltip}"

app/views/projects/merge_requests/widget/_merged_buttons.haml

@@ -9,6 +9,6 @@
         = icon('trash-o')
         Remove Source Branch
     - if mr_can_be_reverted
-      = revert_commit_link(@merge_request.merge_commit, namespace_project_merge_request_path(@project.namespace, @project, @merge_request), btn_class: 'sm')
+      = revert_commit_link(@merge_request.merge_commit, namespace_project_merge_request_path(@project.namespace, @project, @merge_request), btn_class: "warning")
     - if mr_can_be_cherry_picked
-      = cherry_pick_commit_link(@merge_request.merge_commit, namespace_project_merge_request_path(@project.namespace, @project, @merge_request), btn_class: 'sm')
+      = cherry_pick_commit_link(@merge_request.merge_commit, namespace_project_merge_request_path(@project.namespace, @project, @merge_request), btn_class: "default")