remove redundant code from ssh image provider

lib/data_provider/ssh_data_provider.dart

@@ -73,37 +73,22 @@ class SSHDataProvider extends DataProvider {
 }
 
 class _SSHImageProvider extends ImageProvider<_SSHImageProvider> {
-  const _SSHImageProvider(this.uri, this.sftpClient, {this.scale = 1.0});
+  const _SSHImageProvider(this.uri, this.sftpClient);
 
   final Uri uri;
   final SftpClient sftpClient;
 
-  /// The scale to place in the [ImageInfo] object of the image.
-  final double scale;
-
   @override
   Future<_SSHImageProvider> obtainKey(ImageConfiguration configuration) {
     return SynchronousFuture<_SSHImageProvider>(this);
   }
 
-  @override
-  ImageStreamCompleter load(_SSHImageProvider key, DecoderCallback decode) {
-    return MultiFrameImageStreamCompleter(
-      codec: _loadAsync(key, null, decode),
-      scale: key.scale,
-      debugLabel: key.uri.path,
-      informationCollector: () => <DiagnosticsNode>[
-        ErrorDescription('Path: ${uri.path}'),
-      ],
-    );
-  }
-
   @override
   ImageStreamCompleter loadBuffer(
       _SSHImageProvider key, DecoderBufferCallback decode) {
     return MultiFrameImageStreamCompleter(
-      codec: _loadAsync(key, decode, null),
-      scale: key.scale,
+      codec: _loadAsync(key, decode),
+      scale: 1.0,
       debugLabel: key.uri.path,
       informationCollector: () => <DiagnosticsNode>[
         ErrorDescription('Path: ${uri.path}'),
@@ -111,8 +96,8 @@ class _SSHImageProvider extends ImageProvider<_SSHImageProvider> {
     );
   }
 
-  Future<ui.Codec> _loadAsync(_SSHImageProvider key,
-      DecoderBufferCallback? decode, DecoderCallback? decodeDeprecated) async {
+  Future<ui.Codec> _loadAsync(
+      _SSHImageProvider key, DecoderBufferCallback decode) async {
     assert(key == this);
 
     Directory tempDir = await getTemporaryDirectory();
@@ -125,7 +110,6 @@ class _SSHImageProvider extends ImageProvider<_SSHImageProvider> {
       bytes = await tmpPic.readAsBytes();
     } else {
       final file = await sftpClient.open(uri.toFilePath());
-      // todo do not load whole image in ram, create tempfile instead.
       bytes = await file.readBytes();
       await tmpPic.create(recursive: true);
       await tmpPic.writeAsBytes(bytes);
@@ -138,10 +122,7 @@ class _SSHImageProvider extends ImageProvider<_SSHImageProvider> {
           'bytes are empty is empty and cannot be loaded as an image.');
     }
 
-    if (decode != null) {
-      return decode(await ui.ImmutableBuffer.fromUint8List(bytes));
-    }
-    return decodeDeprecated!(bytes);
+    return decode(await ui.ImmutableBuffer.fromUint8List(bytes));
   }
 
   @override
@@ -149,15 +130,12 @@ class _SSHImageProvider extends ImageProvider<_SSHImageProvider> {
     if (other.runtimeType != runtimeType) {
       return false;
     }
-    return other is _SSHImageProvider &&
-        other.uri.path == uri.path &&
-        other.scale == scale;
+    return other is _SSHImageProvider && other.uri.path == uri.path;
   }
 
   @override
-  int get hashCode => Object.hash(uri.path, scale);
+  int get hashCode => uri.path.hashCode;
 
   @override
-  String toString() =>
-      '${objectRuntimeType(this, 'FileImage')}("${uri.path}", scale: $scale)';
+  String toString() => '${objectRuntimeType(this, 'FileImage')}("${uri.path}")';
 }