Did I get you right? The code should edit it "in place" and not return a new array? This works but looses any sorting you had: 
sub util_remove_duplicates {
  my %hash;
  @hash{@{$_[0]}}=();
  @{$_[0]}=keys %hash;
}

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In reply to Re: Removing Duplicates from Array Passed by Reference by Skeeve
in thread Removing Duplicates from Array Passed by Reference by arunhorne

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