Remove "Name Contains" query constraint from Diffusion for Repositories

Summary:
Ref T12819. Obsoleted by the Ferret engine "Query" field.

This is a compatibility break, I'll note it in the changelog.

Test Plan: Searched for repositories by name with "Query" instead of "Name Contains".

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T12819

Differential Revision: https://secure.phabricator.com/D18588

src/applications/repository/query/PhabricatorRepositorySearchEngine.php

@@ -24,9 +24,6 @@ final class PhabricatorRepositorySearchEngine
       id(new PhabricatorSearchStringListField())
         ->setLabel(pht('Callsigns'))
         ->setKey('callsigns'),
-      id(new PhabricatorSearchTextField())
-        ->setLabel(pht('Name Contains'))
-        ->setKey('name'),
       id(new PhabricatorSearchSelectField())
         ->setLabel(pht('Status'))
         ->setKey('status')
@@ -72,10 +69,6 @@ final class PhabricatorRepositorySearchEngine
       $query->withTypes($map['types']);
     }
 
-    if (strlen($map['name'])) {
-      $query->withNameContains($map['name']);
-    }
-
     if ($map['uris']) {
       $query->withURIs($map['uris']);
     }