Remove deprecated mappedBy.

sdk/lib/svg/dartium/svg_dartium.dart

Index: sdk/lib/svg/dartium/svg_dartium.dart
diff --git a/sdk/lib/svg/dartium/svg_dartium.dart b/sdk/lib/svg/dartium/svg_dartium.dart
index 98cb362a64e0a9e131aa4fc76bb2604d1337cef2..c0d430b607636adad9d97c1c651c0f5d5558fa90 100644
--- a/sdk/lib/svg/dartium/svg_dartium.dart
+++ b/sdk/lib/svg/dartium/svg_dartium.dart
@@ -3346,9 +3346,6 @@ class LengthList extends NativeFieldWrapperClass1 implements List<Length> {
   Iterable map(f(Length element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(Length element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<Length> where(bool f(Length element)) =>
       IterableMixinWorkaround.where(this, f);
 
@@ -4050,9 +4047,6 @@ class NumberList extends NativeFieldWrapperClass1 implements List<Number> {
   Iterable map(f(Number element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(Number element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<Number> where(bool f(Number element)) =>
       IterableMixinWorkaround.where(this, f);
 
@@ -5230,9 +5224,6 @@ class PathSegList extends NativeFieldWrapperClass1 implements List<PathSeg> {
   Iterable map(f(PathSeg element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(PathSeg element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<PathSeg> where(bool f(PathSeg element)) =>
       IterableMixinWorkaround.where(this, f);
 
@@ -6215,9 +6206,6 @@ class StringList extends NativeFieldWrapperClass1 implements List<String> {
   Iterable map(f(String element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(String element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<String> where(bool f(String element)) =>
       IterableMixinWorkaround.where(this, f);
 
@@ -7470,9 +7458,6 @@ class TransformList extends NativeFieldWrapperClass1 implements List<Transform>
   Iterable map(f(Transform element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(Transform element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<Transform> where(bool f(Transform element)) =>
       IterableMixinWorkaround.where(this, f);
 
@@ -8044,9 +8029,6 @@ class _ElementInstanceList extends NativeFieldWrapperClass1 implements List<Elem
   Iterable map(f(ElementInstance element)) =>
       IterableMixinWorkaround.mapList(this, f);
 
-  List mappedBy(f(ElementInstance element)) =>
-      IterableMixinWorkaround.mappedByList(this, f);
-
   Iterable<ElementInstance> where(bool f(ElementInstance element)) =>
       IterableMixinWorkaround.where(this, f);