removes gcp security driver (no longer used by :dns)

sec/com/googleapis.hoon

@@ -1,57 +0,0 @@
-::  Test url +https://www.googleapis.com/oauth2/v1/userinfo
-::
-::::  /hoon/googleapis/com/sec
-  ::
-/+    oauth2, interpolate, hep-to-cab
-::
-::::
-  ::
-|%
-++  user-state  {ber/token ref/refresh}:oauth2
-++  suffix-email
-  %+  cook  welp
-  ;~  plug
-    (star ;~(less vat prn))
-    ;~(pose (plus prn) (easy "@gmail.com"))
-  ==
-::
-++  auth-usr
-  |=  usr/user:eyre
-  =+  lon=(fall (slaw %t usr) usr)
-  %+  add-query:interpolate  'https://accounts.google.com/o/oauth2/v2/auth'
-  %-  quay:hep-to-cab
-  :~  login-hint+?~(lon '' (crip (rash lon suffix-email)))
-      access-type+%offline
-      response-type+%code
-      prompt+%consent
-  ==
-++  scopes
-  :~  'https://mail.google.com'
-      'https://www.googleapis.com/auth/plus.me'
-      'https://www.googleapis.com/auth/userinfo.email'
-      'https://www.googleapis.com/auth/ndev.clouddns.readwrite'
-      'https://www.googleapis.com/auth/cloud-platform.read-only'
-  ==
-::
-++  exchange-url  'https://www.googleapis.com/oauth2/v4/token'
---
-::
-::::
-  ::
-|_  {bal/(bale:eyre keys:oauth2) own/user-state}
-::  ++auth is a "standard refreshing oauth2" core, which implements the
-::  most common handling of oauth2 semantics. see lib/oauth2 for more details,
-::  and examples at the bottom of the file.
-++  auth
-  =+  a=~(standard-refreshing oauth2 bal ber.own)
-  (a(state-usr &) ..auth ref.own |=(a/user-state ..auth(own a)))
-::
-++  filter-request  (out-refresh-or-add-header:auth exchange-url scopes dialog-url)
-++  dialog-url  (auth-usr usr.bal)
-::
-++  filter-response  res-save-after-refresh:auth
-::
-++  receive-auth-query-string  (in-code-to-token:auth exchange-url)
-++  receive-auth-response      bak-save-both-tokens:auth
-:: ++  update  *user-state
---