Remove Stray @MockBean

Issue gh-7170

samples/boot/oauth2resourceserver/src/test/java/sample/OAuth2ResourceServerControllerTests.java

@@ -20,9 +20,7 @@ import org.junit.runner.RunWith;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
-import org.springframework.boot.test.mock.mockito.MockBean;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
-import org.springframework.security.oauth2.jwt.JwtDecoder;
 import org.springframework.test.context.junit4.SpringRunner;
 import org.springframework.test.web.servlet.MockMvc;
 
@@ -47,9 +45,6 @@ public class OAuth2ResourceServerControllerTests {
 	@Autowired
 	MockMvc mockMvc;
 
-	@MockBean
-	JwtDecoder jwtDecoder;
-
 	@Test
 	public void indexGreetsAuthenticatedUser() throws Exception {
 		mockMvc.perform(get("/").with(jwt(jwt -> jwt.subject("ch4mpy"))))