Revert "fix the widget span layout when text scale factor != 1 (#59711)" (#59986)

This reverts commit 747fe345.

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

@@ -530,10 +530,9 @@ class RenderParagraph extends RenderBox
       // Only constrain the width to the maximum width of the paragraph.
       // Leave height unconstrained, which will overflow if expanded past.
       child.layout(
-        // The content will be enlarged by textScaleFactor during painting phase.
-        // We reduce contraint by textScaleFactor so that the content will fit
-        // into the box once it is enlarged.
-        BoxConstraints(maxWidth: constraints.maxWidth) / textScaleFactor,
+        BoxConstraints(
+          maxWidth: constraints.maxWidth,
+        ),
         parentUsesSize: true,
       );
       double baselineOffset;

packages/flutter/test/widgets/text_test.dart

@@ -163,68 +163,6 @@ void main() {
     expect(tester.takeException(), null);
   }, skip: isBrowser); // TODO(yjbanov): https://github.com/flutter/flutter/issues/42086
 
-  testWidgets('inline widgets works with textScaleFactor', (WidgetTester tester) async {
-    // Regression test for https://github.com/flutter/flutter/issues/59316
-    final UniqueKey key = UniqueKey();
-    double textScaleFactor = 1.0;
-    await tester.pumpWidget(
-      MaterialApp(
-        home: Scaffold(
-          appBar: AppBar(title: const Text('title')),
-          body: Center(
-            child: Text.rich(
-              TextSpan(
-                children: <InlineSpan>[
-                  WidgetSpan(
-                    child: RichText(
-                      text: const TextSpan(text: 'widget should be truncated'),
-                      textDirection: TextDirection.ltr,
-                    ),
-                  ),
-                ],
-              ),
-              key: key,
-              textDirection: TextDirection.ltr,
-              textScaleFactor: textScaleFactor,
-            ),
-          ),
-        ),
-      ),
-    );
-    RenderBox renderText = tester.renderObject(find.byKey(key));
-    final double singleLineHeight = renderText.size.height;
-    // Now, increases the text scale factor by 5 times.
-    textScaleFactor = textScaleFactor * 5;
-    await tester.pumpWidget(
-      MaterialApp(
-        home: Scaffold(
-          appBar: AppBar(title: const Text('title')),
-          body: Center(
-            child: Text.rich(
-              TextSpan(
-                children: <InlineSpan>[
-                  WidgetSpan(
-                    child: RichText(
-                      text: const TextSpan(text: 'widget should be truncated'),
-                      textDirection: TextDirection.ltr,
-                    ),
-                  ),
-                ],
-              ),
-              key: key,
-              textDirection: TextDirection.ltr,
-              textScaleFactor: textScaleFactor,
-            ),
-          ),
-        ),
-      ),
-    );
-
-    renderText = tester.renderObject(find.byKey(key));
-    // The RichText in the widget span should wrap into three lines.
-    expect(renderText.size.height, singleLineHeight * textScaleFactor * 3);
-  }, skip: isBrowser); // TODO(yjbanov): https://github.com/flutter/flutter/issues/42086
-
   testWidgets('semanticsLabel can override text label', (WidgetTester tester) async {
     final SemanticsTester semantics = SemanticsTester(tester);
     await tester.pumpWidget(