leaking_addresses: Completely remove --version flag

Recently attempt to remove the '--version' flag was made, badly.  We
failed to remove mention of it from the help output.  And we (me) failed
to actually remove the flag from the options list.

_Completely_ remove --version flag.

scripts/leaking_addresses.pl

@@ -97,7 +97,7 @@ sub help
 	--32-bit			Scan 32-bit kernel.
 	--page-offset-32-bit=o		Page offset (for 32-bit kernel 0xABCD1234).
 	-d, --debug			Display debugging output.
-	-h, --help, --version		Display this help and exit.
+	-h, --help			Display this help and exit.
 
 Scans the running kernel for potential leaking addresses.
 
@@ -108,7 +108,6 @@ sub help
 GetOptions(
 	'd|debug'		=> \$debug,
 	'h|help'		=> \$help,
-	'version'		=> \$help,
 	'o|output-raw=s'        => \$output_raw,
 	'i|input-raw=s'         => \$input_raw,
 	'suppress-dmesg'        => \$suppress_dmesg,