BAEL-9467 Update Spring Security article

-Removed redundant field

Author: dkapil

spring-security-rest/src/main/java/org/baeldung/spring/SecurityJavaConfig.java

@@ -23,9 +23,6 @@
 @ComponentScan("org.baeldung.security")
 public class SecurityJavaConfig extends WebSecurityConfigurerAdapter {
 
-    @Autowired
-    private PasswordEncoder encoder; 
-    
     @Autowired
     private CustomAccessDeniedHandler accessDeniedHandler;
 
@@ -45,9 +42,9 @@ public SecurityJavaConfig() {
     @Override
     protected void configure(final AuthenticationManagerBuilder auth) throws Exception {
         auth.inMemoryAuthentication()
-            .withUser("admin").password(encoder.encode("adminPass")).roles("ADMIN")
+            .withUser("admin").password(encoder().encode("adminPass")).roles("ADMIN")
             .and()
-            .withUser("user").password(encoder.encode("userPass")).roles("USER");
+            .withUser("user").password(encoder().encode("userPass")).roles("USER");
     }
 
     @Override