Clean up imports

application/src/main/java/org/thingsboard/server/service/edge/rpc/fetch/AdminSettingsEdgeEventFetcher.java

@@ -23,11 +23,8 @@ import freemarker.template.Configuration;
 import freemarker.template.Template;
 import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.apache.commons.io.FileUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.text.WordUtils;
-import org.springframework.core.io.DefaultResourceLoader;
-import org.springframework.core.io.Resource;
 import org.thingsboard.server.common.data.AdminSettings;
 import org.thingsboard.server.common.data.edge.Edge;
 import org.thingsboard.server.common.data.edge.EdgeEvent;
@@ -40,8 +37,6 @@ import org.thingsboard.server.common.data.page.PageLink;
 import org.thingsboard.server.dao.settings.AdminSettingsService;
 import org.thingsboard.server.service.edge.rpc.EdgeEventUtils;
 
-import java.io.File;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;