7: Finalize Spring Boot example app

Task-Url: #7

dariahsp-sample-boot/src/main/java/eu/dariah/de/dariahsp/sample/config/SampleWebSecurityConfig.java

@@ -2,7 +2,6 @@ package eu.dariah.de.dariahsp.sample.config;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
-import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;