Implement RS auth revocation

app/controllers/services/rs_auths_controller.rb

@@ -0,0 +1,34 @@
+class Services::RsAuthsController < Services::BaseController
+  before_action :authenticate_user!
+  before_action :require_feature_enabled
+  before_action :require_service_available
+  # before_action :require_service_enabled
+
+  def destroy
+    if @rs_auth = current_user.remote_storage_authorizations.find(params[:id])
+      @rs_auth.destroy!
+    else
+      http_status :not_found
+    end
+
+    respond_to do |format|
+      format.html do redirect_to services_storage_url, flash: {
+        success: 'App authorization revoked'
+      }
+      end
+      format.json { head :no_content }
+    end
+  end
+
+  private
+
+    def require_feature_enabled
+      unless Flipper.enabled?(:remotestorage, current_user)
+        http_status :forbidden
+      end
+    end
+
+    def require_service_available
+      http_status :not_found unless Setting.remotestorage_enabled?
+    end
+end