Fix indent, remove not used variable

lib/devise/omniauth.rb

@@ -1,7 +1,7 @@
 begin
   require "omniauth"
   require "omniauth/version"
-rescue LoadError => e
+rescue LoadError
   warn "Could not load 'omniauth'. Please ensure you have the omniauth gem >= 1.0.0 installed and listed in your Gemfile."
   raise
 end

lib/devise/strategies/authenticatable.rb

@@ -84,8 +84,8 @@ module Devise
 
       # Extract the appropriate subhash for authentication from params.
       def params_auth_hash
-         params[scope]
-       end
+        params[scope]
+      end
 
       # Extract a hash with attributes:values from the http params.
       def http_auth_hash