Revert "Fixed MR handling when GitLab CI project is not present"

This reverts commit 3abcab779e.

app/models/project_services/gitlab_ci_service.rb

@@ -46,9 +46,7 @@ class GitlabCiService < CiService
     end
 
     ci_project = Ci::Project.find_by(gitlab_id: project.id)
-    if ci_project
-      Ci::CreateCommitService.new.execute(ci_project, data)
-    end
+    Ci::CreateCommitService.new.execute(ci_project, data)
   end
 
   def get_ci_commit(sha, ref)
@@ -87,9 +85,7 @@ class GitlabCiService < CiService
   end
 
   def build_page(sha, ref)
-    if project.gitlab_ci_project.present?
-      Ci::RoutesHelper.ci_project_ref_commits_path(project.gitlab_ci_project, ref, sha)
-    end
+    Ci::RoutesHelper.ci_project_ref_commits_path(project.gitlab_ci_project, ref, sha)
   end
 
   def title

app/views/projects/merge_requests/widget/_heading.html.haml

@@ -10,8 +10,7 @@
         %span CI build #{status}
         for #{@merge_request.last_commit_short_sha}.
         %span.ci-coverage
-        - if ci_build_details_path(@merge_request)
-          = link_to "View build details", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
+        = link_to "View build details", ci_build_details_path(@merge_request), :"data-no-turbolink" => "data-no-turbolink"
 
     .ci_widget
       = icon("spinner spin")