diff --git a/src/Umbraco.Infrastructure/Migrations/PreMigration/DataTypeSplitDataCollector.cs b/src/Umbraco.Infrastructure/Migrations/PreMigration/DataTypeSplitDataCollector.cs
deleted file mode 100644
index 3a133bc253..0000000000
--- a/src/Umbraco.Infrastructure/Migrations/PreMigration/DataTypeSplitDataCollector.cs
+++ /dev/null
@@ -1,169 +0,0 @@
-using Microsoft.Extensions.Logging;
-using Umbraco.Cms.Core;
-using Umbraco.Cms.Core.Composing;
-using Umbraco.Cms.Core.Configuration;
-using Umbraco.Cms.Core.DependencyInjection;
-using Umbraco.Cms.Core.Events;
-using Umbraco.Cms.Core.Manifest;
-using Umbraco.Cms.Core.Models;
-using Umbraco.Cms.Core.Notifications;
-using Umbraco.Cms.Core.PropertyEditors;
-using Umbraco.Cms.Core.Scoping;
-using Umbraco.Cms.Core.Serialization;
-using Umbraco.Cms.Core.Services;
-using Umbraco.Cms.Core.Sync;
-
-namespace Umbraco.Cms.Infrastructure.Migrations.PreMigration;
-
-// we use a composer here so its easier to clean this up when we no longer need it.
-// same for additional classes in the same file, nice and self contained
-// should only be used to migrate from v13 to v14
-// ⚠️ FIXME: PLEASE DELETE THIS IN V14! ⚠️
-public class DataTypeSplitDataCollectorComposer : IComposer
-{
-    public void Compose(IUmbracoBuilder builder)
-    {
-        builder.AddNotificationHandler<UmbracoApplicationStartedNotification, DataTypeSplitDataCollector>();
-    }
-}
-
-public class DataTypeSplitDataCollector : INotificationHandler<UmbracoApplicationStartedNotification>
-{
-    private readonly DataEditorCollection _dataEditors;
-    private readonly IManifestParser _manifestParser;
-    private readonly IDataTypeService _dataTypeService;
-    private readonly IKeyValueService _keyValueService;
-    private readonly IJsonSerializer _jsonSerializer;
-    private readonly ILogger<DataTypeSplitDataCollector> _logger;
-    private readonly ICoreScopeProvider _coreScopeProvider;
-    private readonly IRuntimeState _runtimeState;
-    private readonly IServerRoleAccessor _serverRoleAccessor;
-    private readonly IUmbracoVersion _umbracoVersion;
-
-    public DataTypeSplitDataCollector(
-        DataEditorCollection dataEditors,
-        IManifestParser manifestParser,
-        IDataTypeService dataTypeService,
-        IKeyValueService keyValueService,
-        IJsonSerializer jsonSerializer,
-        ILogger<DataTypeSplitDataCollector> logger,
-        ICoreScopeProvider coreScopeProvider,
-        IRuntimeState runtimeState,
-        IServerRoleAccessor serverRoleAccessor,
-        IUmbracoVersion umbracoVersion)
-    {
-        _dataEditors = dataEditors;
-        _manifestParser = manifestParser;
-        _dataTypeService = dataTypeService;
-        _keyValueService = keyValueService;
-        _jsonSerializer = jsonSerializer;
-        _logger = logger;
-        _coreScopeProvider = coreScopeProvider;
-        _runtimeState = runtimeState;
-        _serverRoleAccessor = serverRoleAccessor;
-        _umbracoVersion = umbracoVersion;
-    }
-
-    public void Handle(UmbracoApplicationStartedNotification notification)
-    {
-        // should only be used to collect data in v13
-        if (_umbracoVersion.Version.Major is not 13)
-        {
-            return;
-        }
-
-        // only run this if the application is actually running and not in an install/upgrade state
-        if (_runtimeState.Level != RuntimeLevel.Run)
-        {
-            return;
-        }
-
-        // do not run on load balanced subscribers
-        if (_serverRoleAccessor.CurrentServerRole == ServerRole.Subscriber)
-        {
-            return;
-        }
-
-        var manifestEditorsData = _manifestParser.CombinedManifest.PropertyEditors
-            .Select(pe => new EditorAliasSplitData(pe.Alias){EditorUiAlias = pe.Alias, EditorAlias = EditorAliasFromValueEditorValueType(pe.GetValueEditor().ValueType)})
-            .ToDictionary(data => data.OriginalEditorAlias);
-
-        _logger.LogDebug("Found {count} custom PropertyEditor(s) configured trough manifest files",manifestEditorsData.Count);
-
-        var fromCodeEditorsData = _dataEditors
-            .Where(de =>
-                de.GetType().Assembly.GetName().FullName
-                    .StartsWith("umbraco.core", StringComparison.InvariantCultureIgnoreCase) is false
-                && de.GetType().Assembly.GetName().FullName
-                    .StartsWith("umbraco.infrastructure", StringComparison.InvariantCultureIgnoreCase) is false)
-            .Select(de => new EditorAliasSplitData(de.Alias) { EditorAlias = de.Alias })
-            .ToDictionary(data => data.OriginalEditorAlias);
-
-        _logger.LogDebug("Found {count} custom PropertyEditor(s) configured trough code",fromCodeEditorsData.Count);
-
-        var combinedEditorsData = new Dictionary<string, EditorAliasSplitData>(manifestEditorsData);
-        foreach (KeyValuePair<string,EditorAliasSplitData> pair in fromCodeEditorsData)
-        {
-            combinedEditorsData.Add(pair.Key,pair.Value);
-        }
-
-        if (combinedEditorsData.Any() == false)
-        {
-            _logger.LogDebug("No custom PropertyEditors found, skipping collection datatype migration data.");
-            return;
-        }
-
-        using ICoreScope coreScope = _coreScopeProvider.CreateCoreScope(autoComplete: true);
-
-        IEnumerable<IDataType> dataTypes = _dataTypeService.GetAll();
-
-        DataTypeEditorAliasMigrationData[] migrationData = dataTypes
-            .Where(dt => combinedEditorsData.ContainsKey(dt.EditorAlias))
-            .Select(dt => new DataTypeEditorAliasMigrationData
-        {
-            DataTypeId = dt.Id,
-            EditorAlias = combinedEditorsData[dt.EditorAlias].EditorAlias,
-            EditorUiAlias = combinedEditorsData[dt.EditorAlias].EditorUiAlias
-        }).ToArray();
-
-        _logger.LogDebug("Collected migration data for {count} DataType(s) that use custom PropertyEditors",migrationData.Length);
-
-        _keyValueService.SetValue("migrateDataEditorSplitCollectionData",_jsonSerializer.Serialize(migrationData));
-    }
-
-    private class EditorAliasSplitData
-    {
-        public EditorAliasSplitData(string originalEditorAlias)
-        {
-            OriginalEditorAlias = originalEditorAlias;
-        }
-
-        public string OriginalEditorAlias { get; init; }
-        public string? EditorUiAlias { get; init; }
-        public string? EditorAlias { get; init; }
-    }
-
-    private class DataTypeEditorAliasMigrationData
-    {
-        public int DataTypeId { get; set; }
-        public string? EditorUiAlias { get; init; }
-        public string? EditorAlias { get; init; }
-    }
-
-    private string EditorAliasFromValueEditorValueType(string valueType)
-    {
-        switch (valueType)
-        {
-            case ValueTypes.Date: return "Umbraco.Plain.DateTime";
-            case ValueTypes.DateTime: return "Umbraco.Plain.DateTime";
-            case ValueTypes.Decimal: return "Umbraco.Plain.Decimal";
-            case ValueTypes.Integer: return "Umbraco.Plain.Integer";
-            case ValueTypes.Bigint: return "Umbraco.Plain.Integer";
-            case ValueTypes.Json: return "Umbraco.Plain.Json";
-            case ValueTypes.Time: return "Umbraco.Plain.Time";
-            case ValueTypes.String: return "Umbraco.Plain.String";
-            case ValueTypes.Xml: return "Umbraco.Plain.String";
-            default:return string.Empty;
-        }
-    }
-}