Fix event listening for duration field

Signed-off-by: SirWayne <dennis.melzer@bosch-si.com>

hawkbit-core/src/main/java/org/eclipse/hawkbit/HawkbitServerProperties.java

@@ -9,13 +9,11 @@
 package org.eclipse.hawkbit;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
 
 /**
  * Properties for the server e.g. the server's URL which must be configured.
  * 
  */
-@Component
 @ConfigurationProperties("hawkbit.server")
 public class HawkbitServerProperties {
     /**