[ffigen] Remove/fix references to dartlang.org (#1)

and other cleanup to .gitignore

pkgs/ffigen/.gitignore

diff --git a/pkgs/ffigen/.gitignore b/pkgs/ffigen/.gitignore
index dbef116..3d4ae48 100644
--- a/pkgs/ffigen/.gitignore
+++ b/pkgs/ffigen/.gitignore
@@ -1,21 +1,6 @@
-# See https://www.dartlang.org/guides/libraries/private-files
+# See https://dart.dev/guides/libraries/private-files
 
 # Files and directories created by pub
 .dart_tool/
 .packages
-build/
-# If you're building an application, you may want to check-in your pubspec.lock
 pubspec.lock
-
-# Directory created by dartdoc
-# If you don't generate documentation locally you can remove this line.
-doc/api/
-
-# Avoid committing generated Javascript files:
-*.dart.js
-*.info.json      # Produced by the --dump-info flag.
-*.js             # When generated by dart2js. Don't specify *.js if your
-                 # project includes source files written in JavaScript.
-*.js_
-*.js.deps
-*.js.map

pkgs/ffigen/pubspec.yaml

diff --git a/pkgs/ffigen/pubspec.yaml b/pkgs/ffigen/pubspec.yaml
index 80a756f..7711721 100644
--- a/pkgs/ffigen/pubspec.yaml
+++ b/pkgs/ffigen/pubspec.yaml
@@ -1,13 +1,12 @@
 name: ffigen
 version: 0.0.1
-author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/ffigen
 description: Experimental generator for FFI bindings.
 
 environment:
   sdk: '>=2.7.0 <3.0.0'
 
-dependencies:
+#dependencies:
 
 dev_dependencies:
   pedantic: ^1.9.0