[tlinh2110@gmail.com] Remove unused test cases

spring-security-core/src/main/java/org/baeldung/testmethodsecurity/service/SystemPropImpl.java

@@ -1,26 +0,0 @@
-package org.baeldung.testmethodsecurity.service;
-
-import org.springframework.security.access.annotation.Secured;
-import org.springframework.security.access.prepost.PreAuthorize;
-import org.springframework.stereotype.Service;
-
-@Service
-public class SystemPropImpl implements SystemPropInterface{
-
-    @PreAuthorize("permitAll")
-    @Override
-    public String getSystemName() {
-        return "Method Security";
-    }
-    
-    @Override
-    public String sayHello(){
-        return sayHi();
-    }
-    
-    @Secured("ROLE_USER")
-    public String sayHi(){
-        return "Hi";
-    }
-
-}

spring-security-core/src/main/java/org/baeldung/testmethodsecurity/service/SystemPropInterface.java

@@ -1,11 +0,0 @@
-package org.baeldung.testmethodsecurity.service;
-
-public interface SystemPropInterface {
-
-    String getSystemName();
-    
-    String sayHello();
-    
-    String sayHi();
-    
-}

spring-security-core/src/main/java/org/baeldung/testmethodsecurity/service/UserRoleService.java

@@ -16,7 +16,7 @@ public class UserRoleService {
     UserRoleRepository userRoleRepository;
     
     @PreAuthorize("hasRole('ROLE_VIEWER') or hasAuthority('SYS_ADMIN')")
-    public String getUserName(){
+    public String getUsername(){
         SecurityContext securityContext = SecurityContextHolder.getContext();
         return securityContext.getAuthentication().getName();
     }