chore: fix leftover code in cred provider

modules/authorization/src/main/java/it/smartcommunitylabdhub/authorization/providers/CoreCredentialsProvider.java

@@ -32,15 +32,14 @@
 import java.util.HashSet;
 import java.util.Set;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.authentication.AbstractAuthenticationToken;
 import org.springframework.stereotype.Service;
 import org.springframework.util.Assert;
 
 @Service
 @Slf4j
-public class CoreCredentialsProvider implements ConfigurationProvider, CredentialsProvider, InitializingBean {
+public class CoreCredentialsProvider implements ConfigurationProvider, CredentialsProvider {
 
     private JwtTokenService jwtTokenService;
     private CoreCredentialsConfig config;
@@ -96,11 +95,6 @@ public void setProjectAuthHelper(AuthorizableAwareEntityService<Project> project
         this.projectAuthHelper = projectAuthHelper;
     }
 
-    @Override
-    public void afterPropertiesSet() throws Exception {
-        Assert.notNull(config, "config not initialized");
-    }
-
     @Override
     public CoreCredentials get(@NotNull UserAuthentication<?> auth) {
         if (jwtTokenService == null) {