Remove md5 checksum file from release prep
diff --git a/devel/bin/release_commands.pl b/devel/bin/release_commands.pl
index 24c3266..7346a82 100755
--- a/devel/bin/release_commands.pl
+++ b/devel/bin/release_commands.pl
@@ -109,11 +109,6 @@
 say qq|cd apache-lucy-$full_rc_version\n|;
 
 say qq|# Generate checksums.|;
-say qq|perl -MDigest -e '\$d = Digest->new("MD5"); open \$fh, |
-    . qq|"<apache-lucy-$x_y_z_version.tar.gz" or die; |
-    . qq|\$d->addfile(\$fh); print \$d->hexdigest; |
-    . qq|print "  apache-lucy-$x_y_z_version.tar.gz\\n"' > |
-    . qq| apache-lucy-$x_y_z_version.tar.gz.md5|;
 say qq|perl -MDigest -e '\$d = Digest->new("SHA-512"); open \$fh, |
     . qq|"<apache-lucy-$x_y_z_version.tar.gz" or die; |
     . qq|\$d->addfile(\$fh); print \$d->hexdigest; |
@@ -127,7 +122,6 @@
 say qq|# Add the artifacts and commit to the dev area on dist.apache.org.|;
 say qq|svn add |
     . qq|apache-lucy-$x_y_z_version.tar.gz |
-    . qq|apache-lucy-$x_y_z_version.tar.gz.md5 |
     . qq|apache-lucy-$x_y_z_version.tar.gz.sha512 |
     . qq|apache-lucy-$x_y_z_version.tar.gz.asc |
     . qq|CHANGES-$x_y_z_version.txt |;
@@ -171,8 +165,6 @@
     . qq|-U https://dist.apache.org/repos/dist/ |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz |
     . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz |
-    . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.md5 |
-    . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.md5 |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.sha512 |
     . qq|release/lucy/apache-lucy-$x_y_z_version.tar.gz.sha512 |
     . qq|mv dev/lucy/apache-lucy-$full_rc_version/apache-lucy-$x_y_z_version.tar.gz.asc |
@@ -190,7 +182,6 @@
     say qq|svnmucc -m "Remove Apache Lucy $prev" |
         . qq|-U https://dist.apache.org/repos/dist/release/lucy/ |
         . qq|rm apache-lucy-$prev.tar.gz |
-        . qq|rm apache-lucy-$prev.tar.gz.md5 |
         . qq|rm apache-lucy-$prev.tar.gz.sha512 |
         . qq|rm apache-lucy-$prev.tar.gz.asc |
         . qq|rm CHANGES-$prev.txt |;