Remove WVE and BPS reference identifiers

Reasons why they should be gone:

WVE:
* wirelessve.org is down.
* Not a single module uses WVE as a reference

BPS:
* "BreakingPoint" no longer exists
* The URL takes you to a login page to ixia. And there is no point
  of referencing something people can't see.
* Not a single module uses BPS as a reference.

Author: wchen-r7

lib/msf/core/module/reference.rb

@@ -104,12 +104,8 @@ def initialize(in_ctx_id = 'Unknown', in_ctx_val = '')
       self.site = 'http://technet.microsoft.com/en-us/security/bulletin/' + in_ctx_val.to_s
     elsif (in_ctx_id == 'EDB')
       self.site = 'http://www.exploit-db.com/exploits/' + in_ctx_val.to_s
-    elsif (in_ctx_id == 'WVE')
-      self.site = 'http://www.wirelessve.org/entries/show/WVE-' + in_ctx_val.to_s
     elsif (in_ctx_id == 'US-CERT-VU')
       self.site = 'http://www.kb.cert.org/vuls/id/' + in_ctx_val.to_s
-    elsif (in_ctx_id == 'BPS')
-      self.site = 'https://strikecenter.bpointsys.com/bps/advisory/BPS-' + in_ctx_val.to_s
     elsif (in_ctx_id == 'ZDI')
       self.site = 'http://www.zerodayinitiative.com/advisories/ZDI-' + in_ctx_val.to_s
     elsif (in_ctx_id == 'URL')