remove unactionable deprecation warning

Author: oreoshake

lib/secure_headers.rb

@@ -212,7 +212,6 @@ def set_x_permitted_cross_domain_policies_header(options=self.class.secure_heade
     # we can't use ||= because I'm overloading false => disable, nil => default
     # both of which trigger the conditional assignment
     def secure_header_options_for(type, options)
-      warn "[DEPRECATION] secure_header_options_for will not be supported in secure_headers 3.x."
       options.nil? ? ::SecureHeaders::Configuration.send(type) : options
     end
 

lib/secure_headers/version.rb

@@ -1,3 +1,3 @@
 module SecureHeaders
-  VERSION = "2.5.0"
+  VERSION = "2.5.1"
 end