remove Scalar::Util dependency

Build.PL

@@ -29,7 +29,6 @@ Module::Build->new(
 		'List::Util'                 => 0,
 		'LWP::UserAgent'             => 0,
 		'LWP::Protocol::https'       => 0,
-		'Scalar::Util'               => 0,
 	},
 	script_files  => 'bin/',
 	sign          => 1,

cpanfile

@@ -8,7 +8,6 @@ requires 'List::MoreUtils';
 requires 'List::Util';
 requires 'LWP::UserAgent';
 requires 'LWP::Protocol::https';
-requires 'Scalar::Util';
 
 on test => sub {
 	requires 'File::Slurp';