Files.app: Remove multi-profile related fileManagerPrivate APIs that are no more used.

ui/file_manager/file_manager/foreground/js/file_manager_commands.js

Index: ui/file_manager/file_manager/foreground/js/file_manager_commands.js
diff --git a/ui/file_manager/file_manager/foreground/js/file_manager_commands.js b/ui/file_manager/file_manager/foreground/js/file_manager_commands.js
index 59cfbd3c326b163ff095304fa1a7610b0c9c3d3a..af69d7c50df04ae899b652a5467984eeb5f3697d 100644
--- a/ui/file_manager/file_manager/foreground/js/file_manager_commands.js
+++ b/ui/file_manager/file_manager/foreground/js/file_manager_commands.js
@@ -519,14 +519,10 @@ CommandHandler.COMMANDS_['new-window'] = /** @type {Command} */ ({
    * @param {!FileManager} fileManager FileManager to use.
    */
   execute: function(event, fileManager) {
-    chrome.fileManagerPrivate.getProfiles(
-        function(profiles, currentId, displayedId) {
-          fileManager.backgroundPage.launchFileManager({
-            currentDirectoryURL: fileManager.getCurrentDirectoryEntry() &&
-                fileManager.getCurrentDirectoryEntry().toURL(),
-            displayedId: currentId !== displayedId ? displayedId : undefined
-          });
-        });
+    fileManager.backgroundPage.launchFileManager({
+      currentDirectoryURL: fileManager.getCurrentDirectoryEntry() &&
+          fileManager.getCurrentDirectoryEntry().toURL()
+    });
   },
   /**
    * @param {!Event} event Command event.