[web] remove no longer used setFilterQuality (#27329)

lib/web_ui/lib/src/engine/canvaskit/canvaskit_api.dart

@@ -890,7 +890,6 @@ class SkPaint {
   external void setColorInt(int color);
   external void setShader(SkShader? shader);
   external void setMaskFilter(SkMaskFilter? maskFilter);
-  external void setFilterQuality(SkFilterQuality filterQuality);
   external void setColorFilter(SkColorFilter? colorFilter);
   external void setStrokeMiter(double miterLimit);
   external void setImageFilter(SkImageFilter? imageFilter);

lib/web_ui/lib/src/engine/canvaskit/painting.dart

@@ -166,7 +166,6 @@ class CkPaint extends ManagedSkiaObject<SkPaint> implements ui.Paint {
     }
     _filterQuality = value;
     skiaObject.setShader(_shader?.withQuality(value));
-    skiaObject.setFilterQuality(toSkFilterQuality(value));
   }
 
   ui.FilterQuality _filterQuality = ui.FilterQuality.none;
@@ -238,7 +237,6 @@ class CkPaint extends ManagedSkiaObject<SkPaint> implements ui.Paint {
     paint.setMaskFilter(_ckMaskFilter?.skiaObject);
     paint.setColorFilter(_managedColorFilter?.skiaObject);
     paint.setImageFilter(_managedImageFilter?.skiaObject);
-    paint.setFilterQuality(toSkFilterQuality(_filterQuality));
     paint.setStrokeCap(toSkStrokeCap(_strokeCap));
     paint.setStrokeJoin(toSkStrokeJoin(_strokeJoin));
     paint.setStrokeMiter(_strokeMiterLimit);

lib/web_ui/test/canvaskit/canvaskit_api_test.dart

@@ -387,7 +387,6 @@ void _paintTests() {
       2.0,
       true,
     ));
-    paint.setFilterQuality(canvasKit.FilterQuality.High);
     paint.setColorFilter(canvasKit.ColorFilter.MakeLinearToSRGBGamma());
     paint.setStrokeMiter(1.4);
     paint.setImageFilter(canvasKit.ImageFilter.MakeBlur(