Remove all warnings

Author: tneotia

example/pubspec.yaml

@@ -1,5 +1,6 @@
 name: example
 description: flutter_html example app.
+publish_to: none
 
 version: 1.0.0+1
 

lib/flutter_html.dart

@@ -3,7 +3,6 @@ library flutter_html;
 import 'package:chewie/chewie.dart';
 import 'package:chewie_audio/chewie_audio.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter_html/html_parser.dart';
 import 'package:flutter_html/image_render.dart';
 import 'package:flutter_html/src/html_elements.dart';

lib/html_parser.dart

@@ -6,16 +6,10 @@ import 'package:csslib/parser.dart' as cssparser;
 import 'package:csslib/visitor.dart' as css;
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter_html/flutter_html.dart';
-import 'package:flutter_html/image_render.dart';
-import 'package:flutter_html/src/anchor.dart';
 import 'package:flutter_html/src/css_parser.dart';
 import 'package:flutter_html/src/html_elements.dart';
-import 'package:flutter_html/src/layout_element.dart';
-import 'package:flutter_html/src/navigation_delegate.dart';
 import 'package:flutter_html/src/utils.dart';
-import 'package:flutter_html/style.dart';
 import 'package:html/dom.dart' as dom;
 import 'package:html/parser.dart' as htmlparser;
 import 'package:numerus/numerus.dart';

lib/src/anchor.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
 import 'package:flutter_html/src/styled_element.dart';
 

lib/src/css_parser.dart

@@ -3,11 +3,9 @@ import 'dart:ui';
 import 'package:collection/collection.dart';
 import 'package:csslib/visitor.dart' as css;
 import 'package:csslib/parser.dart' as cssparser;
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_html/flutter_html.dart';
 import 'package:flutter_html/src/utils.dart';
-import 'package:flutter_html/style.dart';
 
 Style declarationsToStyle(Map<String, List<css.Expression>> declarations) {
   Style style = new Style();

lib/src/replaced_element.dart

@@ -3,17 +3,11 @@ import 'dart:math';
 import 'package:chewie/chewie.dart';
 import 'package:chewie_audio/chewie_audio.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:flutter_html/flutter_html.dart';
-import 'package:flutter_html/html_parser.dart';
-import 'package:flutter_html/src/anchor.dart';
-import 'package:flutter_html/src/html_elements.dart';
-import 'package:flutter_html/src/navigation_delegate.dart';
 import 'package:flutter_html/src/utils.dart';
 import 'package:flutter_html/src/widgets/iframe_unsupported.dart'
   if (dart.library.io) 'package:flutter_html/src/widgets/iframe_mobile.dart'
   if (dart.library.html) 'package:flutter_html/src/widgets/iframe_web.dart';
-import 'package:flutter_html/style.dart';
 import 'package:flutter_math_fork/flutter_math.dart';
 import 'package:flutter_svg/flutter_svg.dart';
 import 'package:html/dom.dart' as dom;

test/html_parser_test.dart

@@ -1,8 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_html/flutter_html.dart';
-import 'package:flutter_html/html_parser.dart';
-import 'package:flutter_html/src/html_elements.dart';
-import 'package:flutter_html/style.dart';
 import 'package:flutter_test/flutter_test.dart';
 
 void main() {