Revert "Correct multiple inboxes"

This reverts commit 63c30a8bd0.

app/src/main/java/eu/faircode/email/Core.java

@@ -2992,16 +2992,9 @@ class Core {
                 try {
                     db.beginTransaction();
 
-                    if (EntityFolder.INBOX.equals(type)) { // Case insensitive
-                        List<EntityFolder> inboxes = db.folder().getFoldersByType(account.id, type);
-                        if (inboxes == null || inboxes.isEmpty())
-                            folder = null;
-                        else {
-                            folder = inboxes.get(0);
-                            for (int i = 1; i < inboxes.size(); i++)
-                                db.folder().deleteFolder(inboxes.get(i).id);
-                        }
-                    } else
+                    if (EntityFolder.INBOX.equals(type)) // Case insensitive
+                        folder = db.folder().getFolderByType(account.id, type);
+                    else
                         folder = db.folder().getFolderByName(account.id, fullName);
                     if (folder == null) {
                         EntityFolder parent = null;

app/src/main/java/eu/faircode/email/DaoFolder.java

@@ -236,11 +236,6 @@ public interface DaoFolder {
             " WHERE account = :account AND type = :type")
     EntityFolder getFolderByType(long account, String type);
 
-    @Query("SELECT folder.* FROM folder" +
-            " WHERE account = :account AND type = :type" +
-            " ORDER BY folder.id")
-    List<EntityFolder> getFoldersByType(long account, String type);
-
     @Query("SELECT folder.* FROM folder" +
             " JOIN account ON account.id = folder.account" +
             " WHERE account.synchronize" +