my $AoHref = [
    { name => "barney",
      age  => "43" },
    { name => "fred",
      age	 => "44" },
    { name => "wilma",
      age	 => "42" }
    ];

my $newAoH = grep { !($_->{'name'} eq "fred") } $AoHref;

print Dumper ($newAoH);

##</code><code>##

my $newAoH = grep { !({$_->{'name'}} eq "fred") } $AoHref;