Allows to delete excessive report settings

Author: k-ohgishi

src/main/resources/io/jenkins/plugins/reporter/steps/ReportRecorder/config.jelly

@@ -2,7 +2,13 @@
 <j:jelly xmlns:j="jelly:core" xmlns:f="/lib/form">
 
     <f:entry>
-        <f:repeatableProperty field="reports" add="Add Report" header="Report Configuration"/>
+        <f:repeatableProperty field="reports" add="Add Report" header="Report Configuration" minimum="1">
+            <f:entry>
+                <div align="right">
+                    <f:repeatableDeleteButton/>
+                </div>
+            </f:entry>
+        </f:repeatableProperty>
     </f:entry>
 
 </j:jelly>