[pub] clean up Editor messages

sdk/lib/_internal/pub/lib/src/package.dart

Index: sdk/lib/_internal/pub/lib/src/package.dart
diff --git a/sdk/lib/_internal/pub/lib/src/package.dart b/sdk/lib/_internal/pub/lib/src/package.dart
index e783221c4dc88a8d4d64b5c5820c55046f334c14..7d25a2ea68fae64408aba579e23df90ab1e2a595 100644
--- a/sdk/lib/_internal/pub/lib/src/package.dart
+++ b/sdk/lib/_internal/pub/lib/src/package.dart
@@ -90,10 +90,6 @@ class Package {
   Package.inMemory(this.pubspec)
     : dir = null;
 
-  /// Constructs a package. This should not be called directly. Instead, acquire
-  /// packages from [load()].
-  Package._(this.dir, this.pubspec);
-
   /// Returns a debug string for the package.
   String toString() => '$name $version ($dir)';
 }