Remove unused files

ci/licenses_golden/licenses_flutter

@@ -1873,12 +1873,10 @@ ORIGIN: ../../../flutter/lib/ui/text/asset_manager_font_provider.cc + ../../../f
 ORIGIN: ../../../flutter/lib/ui/text/asset_manager_font_provider.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/font_collection.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/font_collection.h + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/lib/ui/text/line_metrics.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/paragraph.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/paragraph.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/paragraph_builder.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/text/paragraph_builder.h + ../../../flutter/LICENSE
-ORIGIN: ../../../flutter/lib/ui/text/text_box.h + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/ui.dart + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/ui_benchmarks.cc + ../../../flutter/LICENSE
 ORIGIN: ../../../flutter/lib/ui/ui_dart_state.cc + ../../../flutter/LICENSE
@@ -4605,12 +4603,10 @@ FILE: ../../../flutter/lib/ui/text/asset_manager_font_provider.cc
 FILE: ../../../flutter/lib/ui/text/asset_manager_font_provider.h
 FILE: ../../../flutter/lib/ui/text/font_collection.cc
 FILE: ../../../flutter/lib/ui/text/font_collection.h
-FILE: ../../../flutter/lib/ui/text/line_metrics.h
 FILE: ../../../flutter/lib/ui/text/paragraph.cc
 FILE: ../../../flutter/lib/ui/text/paragraph.h
 FILE: ../../../flutter/lib/ui/text/paragraph_builder.cc
 FILE: ../../../flutter/lib/ui/text/paragraph_builder.h
-FILE: ../../../flutter/lib/ui/text/text_box.h
 FILE: ../../../flutter/lib/ui/ui.dart
 FILE: ../../../flutter/lib/ui/ui_benchmarks.cc
 FILE: ../../../flutter/lib/ui/ui_dart_state.cc

lib/ui/BUILD.gn

@@ -123,12 +123,10 @@ source_set("ui") {
     "text/asset_manager_font_provider.h",
     "text/font_collection.cc",
     "text/font_collection.h",
-    "text/line_metrics.h",
     "text/paragraph.cc",
     "text/paragraph.h",
     "text/paragraph_builder.cc",
     "text/paragraph_builder.h",
-    "text/text_box.h",
     "ui_dart_state.cc",
     "ui_dart_state.h",
     "volatile_path_tracker.cc",

lib/ui/text.dart

@@ -41,8 +41,6 @@ enum FontWeight {
   /// Black, the most thick
   w900._(900);
 
-  // Users are not allowed to specify a `FontWeight` outside of the w100-w900
-  // range but j
   const FontWeight._(this.value);
 
   /// The thickness value of this font weight.
@@ -2554,18 +2552,6 @@ class LineMetrics {
     required this.lineNumber,
   });
 
-  LineMetrics._(
-    this.hardBreak,
-    this.ascent,
-    this.descent,
-    this.unscaledAscent,
-    this.height,
-    this.width,
-    this.left,
-    this.baseline,
-    this.lineNumber,
-  );
-
   /// True if this line ends with an explicit line break (e.g. '\n') or is the end
   /// of the paragraph. False otherwise.
   final bool hardBreak;
@@ -2786,14 +2772,6 @@ abstract class Paragraph {
   /// to repeatedly call this. Instead, cache the results.
   List<LineMetrics> computeLineMetrics();
 
-  LineMetrics? getLineMetricsAt(int lineNumber);
-
-  int get numberOfLines;
-
-  int? getLineNumber(int codeUnitOffset);
-
-  FontInfo? getFontInfoAt(int codeUnitOffset);
-
   /// Release the resources used by this object. The object is no longer usable
   /// after this method is called.
   void dispose();
@@ -2973,29 +2951,6 @@ base class _NativeParagraph extends NativeFieldWrapperClass1 implements Paragrap
   @Native<Handle Function(Pointer<Void>)>(symbol: 'Paragraph::computeLineMetrics')
   external Float64List _computeLineMetrics();
 
-  @override
-  LineMetrics? getLineMetricsAt(int lineNumber) {
-    return _getLineMetricsAt(lineNumber, LineMetrics._);
-  }
-  @Native<Handle Function(Pointer<Void>, Uint32, Handle)>(symbol: 'Paragraph::getLineMetricsAt')
-  external LineMetrics? _getLineMetricsAt(int lineNumber, Function constructor);
-
-  @override
-  FontInfo? getFontInfoAt(int codeUnitOffset) {
-    assert(codeUnitOffset >= 0);
-    return _getFontInfoAt(codeUnitOffset, FontInfo.new);
-  }
-  @Native<Handle Function(Pointer<Void>, Uint32, Handle)>(symbol: 'Paragraph::getFontInfoAt')
-  external FontInfo? _getFontInfoAt(int codeUnitOffset, Function constructor);
-
-  @override
-  @Native<Uint32 Function(Pointer<Void>)>(symbol: 'Paragraph::getNumberOfLines')
-  external int get numberOfLines;
-
-  @override
-  @Native<Uint32 Function(Pointer<Void>, Uint32)>(symbol: 'Paragraph::getLineNumberAt')
-  external int getLineNumber(int codeUnitOffset);
-
   @override
   void dispose() {
     assert(!_disposed);

lib/ui/text/paragraph.h

@@ -8,8 +8,6 @@
 #include "flutter/fml/message_loop.h"
 #include "flutter/lib/ui/dart_wrapper.h"
 #include "flutter/lib/ui/painting/canvas.h"
-#include "flutter/lib/ui/text/line_metrics.h"
-#include "flutter/lib/ui/text/text_box.h"
 #include "flutter/third_party/txt/src/txt/paragraph.h"
 
 namespace flutter {