diff --git a/gfx/tests/process-textruns.pl b/gfx/tests/process-textruns.pl
deleted file mode 100755
index 5fa85e7bfb6f..000000000000
--- a/gfx/tests/process-textruns.pl
+++ /dev/null
@@ -1,137 +0,0 @@
-#!/usr/bin/perl -w
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# This script is a bunch of utilities for computing statistics about the textruns
-# created during a Gecko run.
-#
-# Usage:
-# 1) Uncomment #define DUMP_TEXT_RUNS in gfxAtsuiFonts.cpp
-# 2) Build
-# 3) Run over some test set, redirecting stdout to a file
-# 4) Pipe that file through this script
-
-# --exclude-spaces-only: ignore all textruns that consistent of zero or more
-# spaces
-my $exclude_spaces = grep(/^--exclude-spaces-only$/, @ARGV);
-
-# --dump-runs: process textruns into a format that can be used by
-# gfxTextRunPerfTest, print that on standard output, and do nothing else
-my $dump_runs = grep(/^--dump-runs$/, @ARGV);
-
-# --obfuscate: ROTL13 the textrun text
-my $obfuscate = grep(/^--obfuscate$/, @ARGV);
-
-my @textruns = ();
-
-while (<STDIN>) {
-  if (/^0x(\w+)\((.*)\) TEXTRUN "(.*)" ENDTEXTRUN$/) {
-    my %tr = ( fontgroup => $1,
-               families => $2,
-               text => $3 );
-    push(@textruns, \%tr);
-  } elsif (/^0x(\w+)\((.*)\) TEXTRUN "(.*)$/) {
-    my %tr = ( fontgroup => $1,
-               families => $2 );
-    my $text = $3."\n";
-    while (<STDIN>) {
-      if (/^(.*)" ENDTEXTRUN$/) {
-        $text .= $1;
-        last;
-      }
-      $text .= $_;
-    }
-    $tr{text} = $text;
-    push(@textruns, \%tr);
-  }
-}
-
-my %quote = ( "\\" => 1, "\"" => 1 );
-
-sub quote_str {
-    my ($text) = @_;
-    my @chars = split(//, $text);
-    my @strs = ();
-    foreach my $c (@chars) {
-      if (ord($c) >= 0x80) {
-        $c = "\\x".sprintf("%x",ord($c)).'""';
-      } elsif ($quote{$c}) {
-        $c = "\\$c";
-      } elsif ($c eq "\n") {
-        $c = " ";
-      }
-      push(@strs, $c);
-    }
-    return '"'.join("", @strs).'"';
-}
-
-if ($dump_runs) {
-  foreach my $tr (@textruns) {
-    print "{ ", &quote_str($tr->{families}), ",\n";
-    my $text = $tr->{text};
-    if ($obfuscate) {
-        $text =~ tr/a-mA-Mn-zN-Z/n-zN-Za-mA-M/;
-    }
-    print "  ", &quote_str($text), " },\n";
-  }
-  exit(0);
-}
-
-my %trs_by_text = ();
-my %trs_by_text_and_fontgroup = ();
-my %trs_by_trimmed_text_and_fontgroup = ();
-my @tr_lengths = ();
-
-$trs_by_text{" "} = [];
-$trs_by_text{""} = [];
-
-sub trim {
-  my ($s) = @_;
-  $s =~ s/^ *//g;
-  $s =~ s/ *$//g;
-  return $s;
-}
-
-my $total_textruns = 0;
-
-foreach my $tr (@textruns) {
-  if ($exclude_spaces && $tr->{text} =~ /^ *$/) {
-    next;
-  }
-  ++$total_textruns;
-  push(@{$trs_by_text{$tr->{text}}}, $tr);
-  push(@{$trs_by_text_and_fontgroup{$tr->{fontgroup}.$tr->{text}}}, $tr);
-  push(@{$trs_by_trimmed_text_and_fontgroup{$tr->{fontgroup}.&trim($tr->{text})}}, $tr);
-  if (1 < scalar(@{$trs_by_trimmed_text_and_fontgroup{$tr->{fontgroup}.&trim($tr->{text})}})) {
-    $tr_lengths[length($tr->{text})]++;
-  }
-}
-
-print "Number of textruns:\t$total_textruns\n";
-print "Number of textruns which are one space:\t", scalar(@{$trs_by_text{" "}}), "\n";
-print "Number of textruns which are empty:\t", scalar(@{$trs_by_text{""}}), "\n";
-
-my $count = 0;
-foreach my $k (keys(%trs_by_text)) {
-  if ($k =~ /^ *$/) {
-    $count += @{$trs_by_text{$k}};
-  }
-}
-print "Number of textruns which are zero or more spaces:\t$count\n";
-
-print "Number of unique textruns by text and fontgroup:\t", scalar(keys(%trs_by_text_and_fontgroup)), "\n";
-print "Number of unique textruns by trimmed text and fontgroup:\t", scalar(keys(%trs_by_trimmed_text_and_fontgroup)), "\n";
-
-my $sum = 0;
-my $weighted_sum = 0;
-if (1) {
-  print "Textrun length distribution:\n";
-  for my $i (0..(scalar(@tr_lengths)-1)) {
-    my $amount = defined($tr_lengths[$i])?$tr_lengths[$i]:0;
-    $sum += $amount;
-    $weighted_sum += $i*$amount;
-    print "$i\t$sum\t$weighted_sum\n";
-  }
-}