Drop support for i18n/Index

This is a follow up of Debian bug #649314

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649314

To also quote https://github.com/Debian/apt/commit/8e3900d0d7efc11d538b944ed1d9e4e3d5286ff6 (from 2012)

```
i18n/Index was never used outside debian - and even here it isn't used
consistently as only 'main' has such a file. As the Release file now
includes the Translation-* files we therefore drop support for
i18n/Index.

A version supporting it was never part of a debian release and still
supporting it would mean that we get 99% of the time a 404 as response
to the request anyway and confuse archive maintainers who want to
provide all files APT tries to acquire.
```

Fixes apt-mirror/apt-mirror#154

1 files changed, 0 insertions, 75 deletions

diff --git a/apt-mirror b/apt-mirror
index effac7e..7e7a5e2 100755
--- a/apt-mirror
+++ b/apt-mirror
@@ -545,81 +545,6 @@ sub find_translation_files_in_release
     }
 }
 
-sub process_translation_index
-{
-    # Extract all translation files from the dists/$DIST/$COMPONENT/i18n/Index
-    # file. Fall back to parsing dists/$DIST/Release if i18n/Index is not found.
-
-    my $dist_uri  = remove_double_slashes(shift);
-    my $component = shift;
-    my ( $base_uri, $index_uri, $index_path, $line ) = '';
-
-    $base_uri   = $dist_uri . $component . "/i18n/";
-    $index_uri  = $base_uri . "Index";
-    $index_path = get_variable("skel_path") . "/" . sanitise_uri($index_uri);
-
-    unless ( open STREAM, "<$index_path" )
-    {
-        find_translation_files_in_release( $dist_uri, $component );
-        return;
-    }
-
-    my $checksums = 0;
-    while ( $line = <STREAM> )
-    {
-        chomp $line;
-        if ($checksums)
-        {
-            if ( $line =~ /^ +(.*)$/ )
-            {
-                my @parts = split( / +/, $1 );
-                if ( @parts == 3 )
-                {
-                    my ( $sha1, $size, $filename ) = @parts;
-                    add_url_to_download( $base_uri . $filename, $size );
-                }
-                else
-                {
-                    warn("Malformed checksum line \"$1\" in $index_uri");
-                }
-            }
-            else
-            {
-                $checksums = 0;
-            }
-        }
-        if ( not $checksums )
-        {
-            if ( $line eq "SHA256:" or $line eq "SHA1:" or $line eq "MD5Sum:" )
-            {
-                $checksums = 1;
-            }
-        }
-    }
-
-    close STREAM;
-}
-
-print "Processing translation indexes: [";
-
-foreach (@config_binaries)
-{
-    my ( $arch, $uri, $distribution, @components ) = @{$_};
-    print "T";
-    if (@components)
-    {
-        $url = $uri . "/dists/" . $distribution . "/";
-
-        my $component;
-        foreach $component (@components)
-        {
-            process_translation_index( $url, $component );
-        }
-    }
-}
-
-print "]\n\n";
-
 push( @index_urls, sort keys %urls_to_download );
 download_urls( "translation", sort keys %urls_to_download );