[Spec] Remove tests for build setting VALIDATE_PRODUCT

This is not part of the default build settings with Xcode 6.1 anymore.

spec/unit/installer/target_installer/aggregate_target_installer_spec.rb

@@ -64,19 +64,6 @@ module Pod
         @project.targets.first.name.should == @target_definition.label
       end
 
-      it 'adds the user build configurations to the target' do
-        @installer.install!
-        target = @project.targets.first
-        target.build_settings('Test')['VALIDATE_PRODUCT'].should.nil?
-        target.build_settings('AppStore')['VALIDATE_PRODUCT'].should == 'YES'
-      end
-
-      it 'sets VALIDATE_PRODUCT to YES for the Release configuration for iOS targets' do
-        @installer.install!
-        target = @project.targets.first
-        target.build_settings('Release')['VALIDATE_PRODUCT'].should == 'YES'
-      end
-
       it 'sets the platform and the deployment target for iOS targets' do
         @installer.install!
         target = @project.targets.first

spec/unit/installer/target_installer/pod_target_installer_spec.rb

@@ -51,12 +51,6 @@ module Pod
         @project.targets.first.name.should == 'Pods-BananaLib'
       end
 
-      it 'sets VALIDATE_PRODUCT to YES for the Release configuration for iOS targets' do
-        @installer.install!
-        target = @project.targets.first
-        target.build_settings('Release')['VALIDATE_PRODUCT'].should == 'YES'
-      end
-
       it 'sets the platform and the deployment target for iOS targets' do
         @installer.install!
         target = @project.targets.first