Changed Sidebar direct channel list to be driven by preferences

web/react/utils/utils.jsx

@@ -1137,6 +1137,11 @@ export function getUserIdFromChannelName(channel) {
     return otherUserId;
 }
 
+// Returns true if the given channel is a direct channel between the current user and the given one
+export function isDirectChannelForUser(otherUserId, channel) {
+    return channel.type === Constants.DM_CHANNEL && getUserIdFromChannelName(channel) === otherUserId;
+}
+
 export function importSlack(file, success, error) {
     var formData = new FormData();
     formData.append('file', file, file.name);
@@ -1252,4 +1257,4 @@ export function isFeatureEnabled(feature) {
 
 export function isSystemMessage(post) {
     return post.type && (post.type.lastIndexOf(Constants.SYSTEM_MESSAGE_PREFIX) === 0);
-}
+}