Remove obsolete config.pl

This commit removes the obsolte config.pl file which was used to
transition to config.py.

Signed-off-by: Harry Ramsey <harry.ramsey@arm.com>
diff --git a/scripts/config.pl b/scripts/config.pl
deleted file mode 100755
index ca02b90..0000000
--- a/scripts/config.pl
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env perl
-# Backward compatibility redirection
-
-## Copyright The Mbed TLS Contributors
-## SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
-##
-
-my $py = $0;
-$py =~ s/\.pl$/.py/ or die "Unable to determine the name of the Python script";
-exec 'python3', $py, @ARGV;
-print STDERR "$0: python3: $!. Trying python instead.\n";
-exec 'python', $py, @ARGV;
-print STDERR "$0: python: $!\n";
-exit 127;