cleanup gitignore

pkgs/web_socket_channel/.gitignore

diff --git a/pkgs/web_socket_channel/.gitignore b/pkgs/web_socket_channel/.gitignore
index 25a1df3..52f0c5b 100644
--- a/pkgs/web_socket_channel/.gitignore
+++ b/pkgs/web_socket_channel/.gitignore
@@ -1,9 +1,3 @@
-.buildlog
-.DS_Store
-.idea
-.pub/
-.settings/
-build/
-packages
 .packages
+.pub/
 pubspec.lock