DDI resource - remove dupplicated annotations (MgmtDownloadArtifactRest) (#2064)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-mgmt/hawkbit-mgmt-api/src/main/java/org/eclipse/hawkbit/mgmt/rest/api/MgmtDownloadArtifactRestApi.java

@@ -34,6 +34,7 @@ public interface MgmtDownloadArtifactRestApi {
      */
     @GetMapping(value = MgmtRestConstants.SOFTWAREMODULE_V1_REQUEST_MAPPING + "/{softwareModuleId}/artifacts/{artifactId}/download")
     @ResponseBody
-    ResponseEntity<InputStream> downloadArtifact(@PathVariable("softwareModuleId") Long softwareModuleId,
+    ResponseEntity<InputStream> downloadArtifact(
+            @PathVariable("softwareModuleId") Long softwareModuleId,
             @PathVariable("artifactId") Long artifactId);
 }