Remove explicit checkstyle dependency
diff --git a/pom.xml b/pom.xml
index ced8746..83de7bf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -249,13 +249,6 @@
         <configuration>
           <configLocation>contrib/checkstyle.xml</configLocation>
         </configuration>
-        <dependencies>
-          <dependency>
-            <groupId>com.puppycrawl.tools</groupId>
-            <artifactId>checkstyle</artifactId>
-            <version>8.23</version>
-          </dependency>
-        </dependencies>
         <executions>
           <execution>
             <id>check-style</id>