Remove ignored clirr differences.
It's valuable at build time to point out at build time and is included
in reports for publishing. Ignoring anything here may create dischord
with what is reported by japicmp.
diff --git a/clirr-ignored.xml b/clirr-ignored.xml
deleted file mode 100644
index d57e5cb..0000000
--- a/clirr-ignored.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0"?>
-<!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
-       http://www.apache.org/licenses/LICENSE-2.0
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
--->
-
-<differences>
-    <difference>
-        <className>**/org/apache/commons/dbutils/AbstractQueryRunner</className>
-        <differenceType>6010</differenceType>
-        <field>ds</field>
-    </difference>
-</differences>
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index d3eaf73..490d0a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -288,15 +288,6 @@
             <excludeFilterFile>sb-excludes.xml</excludeFilterFile>
           </configuration>
         </plugin>
-        <plugin>
-          <groupId>org.codehaus.mojo</groupId>
-          <artifactId>clirr-maven-plugin</artifactId>
-          <version>${commons.clirr.version}</version>
-          <configuration>
-            <minSeverity>${minSeverity}</minSeverity>
-            <ignoredDifferencesFile>${basedir}/clirr-ignored.xml</ignoredDifferencesFile>
-          </configuration>
-        </plugin>
       </plugins>
     </pluginManagement>
     <plugins>