Remove unnecessary 'scaling' option for tests

Author: Andrei Osipov

minibenchmarks.pl

@@ -149,7 +149,6 @@
   skip     => [qw( )],
   tags     => [qw( sorting array )],
   scale    => 0,
-  scaling  => 'linear',
   expected => "0\n",
   perl5    => [qw( BENCH/perl5/insertion-sort SCALE)],
   perl6    => [qw( BENCH/perl6/insertion-sort SCALE)],
@@ -159,7 +158,6 @@
   skip     => [qw( )],
   tags     => [qw( sorting array )],
   scale    => 0,
-  scaling  => 'linear',
   expected => "0\n",
   perl5    => [qw( BENCH/perl5/merge-sort SCALE)],
   perl6    => [qw( BENCH/perl6/merge-sort SCALE)],