word-writable-whitelist: remove postfix-bdb /var/spool/mail no longer packaged

The package now relies on some other package for providing this
directory, see OBS sr#1279040.

Author: mgerstner

configs/openSUSE/world-writable-whitelist.toml

@@ -38,16 +38,6 @@ mode = "drwxrwxrwt"
 owner = "root"
 group = "root"
 
-[[WorldWritableWhitelist]]
-package = "postfix-bdb"
-bug = "bsc#1179574"
-note = "Public standard sticky-bit directories"
-[[WorldWritableWhitelist.files]]
-path = '/var/spool/mail'
-mode = "drwxrwxrwt"
-owner = "root"
-group = "root"
-
 [[WorldWritableWhitelist]]
 package = "postfix"
 bug = "bsc#1179574"