Remove tcp evasions from Http

Can't use 'em anyway

lib/metasploit/framework/login_scanner/http.rb

@@ -139,8 +139,6 @@ module Metasploit
         # like timeouts and TCP evasion options
         def set_sane_defaults
           self.connection_timeout ||= 20
-          self.max_send_size = 0 if self.max_send_size.nil?
-          self.send_delay = 0 if self.send_delay.nil?
           self.uri = '/' if self.uri.blank?
           self.method = 'GET' if self.method.blank?