The OP didn't saying anything about a "controlling loop" - that is something you have injected.

In general, using splice to remove multiple elements from an array can be easily managed by starting at the end and working to the "left".

for my $i ( reverse( 0 .. $#array ) )
{
    if ( $array[$i] =~ /criteria/ )
    {
        splice @array, $i, 1;
    }
}
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