[epiphany] Keep the migrator function, just empty

[Michael Catanzaro <mcatanzaro src gnome org>]

commit da0d5ef4359914c8f84e2be1ebc6bc8351949a2f
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Fri Jan 12 08:50:05 2018 -0600

    Keep the migrator function, just empty
    
    I'm being scolded for breaking the next migration for anyone who has
    already run the thumbnail migration; bring it back, but empty, so there
    can be absolutely no compatibility issues.

 lib/ephy-profile-utils.h                     |    2 +-
 src/profile-migrator/ephy-profile-migrator.c |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/lib/ephy-profile-utils.h b/lib/ephy-profile-utils.h
index 32dd8f3..710b204 100644
--- a/lib/ephy-profile-utils.h
+++ b/lib/ephy-profile-utils.h
@@ -24,7 +24,7 @@
 
 G_BEGIN_DECLS
 
-#define EPHY_PROFILE_MIGRATION_VERSION 25
+#define EPHY_PROFILE_MIGRATION_VERSION 26
 #define EPHY_INSECURE_PASSWORDS_MIGRATION_VERSION 11
 #define EPHY_SETTINGS_MIGRATION_VERSION 16
 #define EPHY_FIREFOX_SYNC_PASSWORDS_MIGRATION_VERSION 19
diff --git a/src/profile-migrator/ephy-profile-migrator.c b/src/profile-migrator/ephy-profile-migrator.c
index deb6cbf..ef0abe7 100644
--- a/src/profile-migrator/ephy-profile-migrator.c
+++ b/src/profile-migrator/ephy-profile-migrator.c
@@ -1215,6 +1215,7 @@ const EphyProfileMigrator migrators[] = {
   /* 23 */ migrate_sync_device_info,
   /* 24 */ migrate_bookmarks_timestamp,
   /* 25 */ migrate_passwords_timestamp,
+  /* 26 */ migrate_nothing
 };
 
 static gboolean