Remove ParagraphConstriants (#3796)

DEPS

@@ -72,7 +72,7 @@ deps = {
    Var('fuchsia_git') + '/zip' + '@' + '92dc87ca645fe8e9f5151ef6dac86d8311a7222f',
 
   'src/lib/txt':
-   Var('fuchsia_git') + '/txt' + '@' + 'b44e28c2fd75d7d4b9dcc862bb2c01a090bb53e1',
+   Var('fuchsia_git') + '/txt' + '@' + '95dc633d881d1b23b88e657bcb2f654459706412',
 
   'src/third_party/gtest':
    Var('fuchsia_git') + '/third_party/gtest' + '@' + 'c00f82917331efbbd27124b537e4ccc915a02b72',

lib/ui/text/paragraph_impl_txt.cc

@@ -8,7 +8,6 @@
 #include "flutter/lib/ui/text/paragraph.h"
 #include "flutter/lib/ui/text/paragraph_impl.h"
 #include "lib/ftl/tasks/task_runner.h"
-#include "lib/txt/src/paragraph_constraints.h"
 
 namespace blink {
 
@@ -47,7 +46,7 @@ bool ParagraphImplTxt::didExceedMaxLines() {
 
 void ParagraphImplTxt::layout(double width) {
   m_width = width;
-  m_paragraph->Layout(txt::ParagraphConstraints{width});
+  m_paragraph->Layout(width);
 }
 
 void ParagraphImplTxt::paint(Canvas* canvas, double x, double y) {