Remove warnings that fail the build

lib/shoulda/matchers/independent.rb

@@ -1,5 +1,4 @@
 require 'shoulda/matchers/independent/delegate_method_matcher'
-require 'shoulda/matchers/independent/delegate_method_matcher/stubbed_target'
 require 'shoulda/matchers/independent/delegate_method_matcher/target_not_defined_error'
 
 module Shoulda

spec/unit/shoulda/matchers/doublespeak/double_spec.rb

@@ -233,6 +233,7 @@ module Shoulda::Matchers::Doublespeak
         doubles[0].activate
 
         was_called = false
+        klass.__send__(:remove_method, method_name)
         klass.__send__(:define_method, method_name) do
           was_called = true
         end

spec/unit/shoulda/matchers/independent/delegate_method_matcher_spec.rb

@@ -418,7 +418,7 @@ def country
           person = Person.new
 
           expect {
-            expect(person).to delegate_method(:hello). to(:country).with_prefix
+            expect(person).to delegate_method(:hello).to(:country).with_prefix
           }.to fail_with_message(message)
         end
       end
@@ -592,7 +592,9 @@ def country; end
           MESSAGE
 
           expectation = lambda do
-            expect(person).to delegate_method(:hello).to(:country).allow_nil
+            silence_warnings do
+              expect(person).to delegate_method(:hello).to(:country).allow_nil
+            end
           end
 
           expect(&expectation).to fail_with_message(message)