ganeti-rapi: Remove serial number/ETag code

It was never used as intended.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

daemons/ganeti-rapi

@@ -164,9 +164,6 @@ class RemoteApiHttpServer(http.auth.HttpServerRequestAuthentication,
 
     try:
       result = ctx.handler_fn()
-      sn = ctx.handler.getSerialNumber()
-      if sn:
-        req.response_headers[http.HTTP_ETAG] = str(sn)
     except luxi.TimeoutError:
       raise http.HttpGatewayTimeout()
     except luxi.ProtocolError, err:

lib/rapi/baserlib.py

@@ -233,13 +233,6 @@ class R_Generic(object):
     self.items = items
     self.queryargs = queryargs
     self.req = req
-    self.sn = None
-
-  def getSerialNumber(self):
-    """Get Serial Number.
-
-    """
-    return self.sn
 
   def _checkIntVariable(self, name, default=0):
     """Return the parsed value of an int argument.