[framework] remove restriction on texture layer rasterization (#109900)

packages/flutter/lib/src/rendering/layer.dart

@@ -887,12 +887,6 @@ class TextureLayer extends Layer {
   /// The identity of the backend texture.
   final int textureId;
 
-  // TODO(jonahwilliams): remove once https://github.com/flutter/flutter/issues/107576 is fixed.
-  @override
-  bool supportsRasterization() {
-    return false;
-  }
-
   /// When true the texture will not be updated with new frames.
   ///
   /// This is used for resizing embedded Android views: when resizing there

packages/flutter/test/rendering/layers_test.dart

@@ -1010,6 +1010,7 @@ void main() {
     final PhysicalModelLayer physicalModelLayer = PhysicalModelLayer();
     final ColorFilterLayer colorFilterLayer = ColorFilterLayer();
     final ShaderMaskLayer shaderMaskLayer = ShaderMaskLayer();
+    final TextureLayer textureLayer = TextureLayer(rect: Rect.zero, textureId: 1);
     expect(offsetLayer.supportsRasterization(), true);
     expect(opacityLayer.supportsRasterization(), true);
     expect(clipRectLayer.supportsRasterization(), true);
@@ -1019,12 +1020,11 @@ void main() {
     expect(physicalModelLayer.supportsRasterization(), true);
     expect(colorFilterLayer.supportsRasterization(), true);
     expect(shaderMaskLayer.supportsRasterization(), true);
+    expect(textureLayer.supportsRasterization(), true);
 
     // Unsupported.
-    final TextureLayer textureLayer = TextureLayer(rect: Rect.zero, textureId: 1);
     final PlatformViewLayer platformViewLayer = PlatformViewLayer(rect: Rect.zero, viewId: 1);
 
-    expect(textureLayer.supportsRasterization(), false);
     expect(platformViewLayer.supportsRasterization(), false);
   });
 }