Roll Observatory deps (charted -> ^0.3.0)

packages/dart_style/lib/src/whitespace.dart

Index: packages/dart_style/lib/src/whitespace.dart
diff --git a/packages/dart_style/lib/src/whitespace.dart b/packages/dart_style/lib/src/whitespace.dart
index 481f498d4db311ff80f8a99d4582d9552e5ac75d..b217fa12373665ff57046e59edcc1cb57b089924 100644
--- a/packages/dart_style/lib/src/whitespace.dart
+++ b/packages/dart_style/lib/src/whitespace.dart
@@ -17,18 +17,6 @@ class Indent {
 
   /// The ":" on a wrapped constructor initialization list.
   static const constructorInitializer = 4;
-
-  /// The indentation for subsequent variables when a for loop defines multiple
-  /// variables that wrap, like:
-  ///
-  ///     for (var a = initializer,
-  ///             b = another,
-  ///             c = third;
-  ///         a + b + c < 100;
-  ///         a++) {
-  ///       ...
-  ///     }
-  static const loopVariable = 8;
 }
 
 /// The kind of pending whitespace that has been "written", but not actually