Remove unnecessary route

In https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55597 we move
some web IDE routes from Vue.js to Rails.

Nevertheless, an unnecessary route was added that is causing some
problems.

Changelog: fixed

app/views/import/_githubish_status.html.haml

@@ -6,7 +6,7 @@
 - provider_title = Gitlab::ImportSources.title(provider)
 
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 #import-projects-mount-element{ data: { provider: provider, provider_title: provider_title,
                                can_select_namespace: current_user.can_select_namespace?.to_s,

app/views/import/bitbucket_server/new.html.haml

 - page_title _('Bitbucket Server Import')
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title.d-flex
   .gl-display-flex.gl-align-items-center.gl-justify-content-center

app/views/import/fogbugz/new.html.haml

 - page_title _("FogBugz Import")
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title.d-flex
   .gl-display-flex.gl-align-items-center.gl-justify-content-center

app/views/import/fogbugz/new_user_map.html.haml

 - page_title _('User map'), _('FogBugz import')
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title.d-flex
   .gl-display-flex.gl-align-items-center.gl-justify-content-center

app/views/import/gitea/new.html.haml

 - page_title _("Gitea Import")
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title
   = custom_icon('gitea_logo')

app/views/import/github/new.html.haml

 - title = _('Authenticate with GitHub')
 - page_title title
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title
   = title

app/views/import/gitlab_projects/new.html.haml

 - page_title _("GitLab Import")
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title.d-flex
   .gl-display-flex.gl-align-items-center.gl-justify-content-center

app/views/import/manifest/new.html.haml

 - page_title _("Manifest file import")
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 
 %h3.page-title

app/views/import/phabricator/new.html.haml

 - page_title _('Phabricator Server Import')
 - header_title _("New project"), new_project_path
-- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_projects_path(anchor: 'import_project')
+- add_to_breadcrumbs s_('ProjectsNew|Import project'), new_project_path(anchor: 'import_project')
 
 %h3.page-title.d-flex
   .gl-display-flex.gl-align-items-center.gl-justify-content-center

config/routes.rb

@@ -161,8 +161,6 @@ Rails.application.routes.draw do
       end
     end
 
-    resource :projects
-
     draw :operations
     draw :jira_connect