test: remove @PendingFeature from RegisterSpec

Also remove `@Stepwise` and `@DirtiesContext`. The test seems to run successfully without these.

examples/simple/src/integration-test/groovy/spec/RegisterSpec.groovy

@@ -1,19 +1,14 @@
 package spec
 
 import grails.testing.mixin.integration.Integration
-import org.springframework.test.annotation.DirtiesContext
 import page.register.ForgotPasswordPage
 import page.register.RegisterPage
 import page.user.UserEditPage
 import page.user.UserSearchPage
 
 import com.dumbster.smtp.SimpleSmtpServer
 import com.dumbster.smtp.SmtpMessage
-import spock.lang.PendingFeature
-import spock.lang.Stepwise
 
-@DirtiesContext(classMode=DirtiesContext.ClassMode.BEFORE_CLASS)
-@Stepwise
 @Integration
 class RegisterSpec extends AbstractSecuritySpec {
 
@@ -77,9 +72,6 @@ class RegisterSpec extends AbstractSecuritySpec {
 		assertContentContains 'No user was found with that username'
 	}
 
-	// FIXME
-	@DirtiesContext
-	@PendingFeature(reason="test is failing at resetPassword stage")
 	void testRegisterAndForgotPassword() {
 
 		given: