fix(lyrics): lift timed words together

test/now_playing_lyrics_transition_test.dart

@@ -3551,15 +3551,11 @@ void main() {
         final bounds = tester.getRect(paintFinder);
         await seek(1300);
         final letters = await paintedHeights(firstWordLetters: true);
-        if (reducedMotion) {
-          expect(letters.$1, letters.$2);
-        } else {
-          expect(
-            letters.$1,
-            lessThan(letters.$2),
-            reason: 'Letters in one timed word must not rise as a block',
-          );
-        }
+        expect(
+          letters.$1,
+          letters.$2,
+          reason: 'Letters in one timed word must rise together',
+        );
         final firstEnded = await seek(1900);
         expect(firstEnded.$2, pending.$2);
         if (reducedMotion) {

test/synced_lyrics_scroll_test.dart

@@ -99,31 +99,6 @@ void main() {
       expect(liftAt(1200, end: 500), 0);
     });
 
-    test('graphemes rise in sweep order and converge after the word', () {
-      double glyph(int time, double offset) => syncedLyricSegmentLift(
-        position: Duration(milliseconds: time),
-        start: const Duration(seconds: 1),
-        end: const Duration(milliseconds: 1500),
-        progressOffset: offset,
-      );
-      expect(glyph(1300, 0), greaterThan(glyph(1300, 0.33)));
-      expect(glyph(1300, 0.33), greaterThan(glyph(1300, 0.66)));
-      expect(glyph(1500, 0.75), lessThan(1));
-      expect(glyph(2100, 0), 1);
-      expect(glyph(2100, 0.75), 1);
-      for (var time = 800; time < 2100; time += 16) {
-        final change = glyph(time + 16, 0.75) - glyph(time, 0.75);
-        expect(change, inInclusiveRange(0, 0.034));
-      }
-      final held = syncedLyricSegmentLift(
-        position: const Duration(milliseconds: 5500),
-        start: const Duration(seconds: 3),
-        end: const Duration(seconds: 6),
-        progressOffset: 0.75,
-      );
-      expect(held, greaterThan(1));
-    });
-
     test('interpolates position only while playback is advancing', () {
       expect(
         interpolatedSyncedLyricsPosition(