Remove extraneous 'use feature qw( switch )'

lib/Zircon/Connection.pm

@@ -3,7 +3,6 @@ package Zircon::Connection;
 
 use strict;
 use warnings;
-use feature qw( switch );
 
 use Carp;
 use Scalar::Util qw( weaken );

lib/Zircon/Protocol/Server/AppLauncher.pm

@@ -6,8 +6,6 @@ package Zircon::Protocol::Server::AppLauncher;
 use strict;
 use warnings;
 
-use feature qw( switch );
-
 use Scalar::Util qw( refaddr );
 use Try::Tiny;