Fix javadoc warnings

Change-Id: I3de24a04593f47c786f698f5ee1669b3d2f2fdfc
diff --git a/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java b/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java
index c3760c6..09d7b08 100644
--- a/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java
+++ b/core/api/src/main/java/org/onosproject/net/config/NetworkConfigService.java
@@ -171,9 +171,10 @@
      * Clears any configuration for the specified subject and configuration
      * key. If one does not exist, this call has no effect.
      *
-     * @param subject     configuration subject
-     * @param configKey   configuration key
-     * @param <S>         type of subject
+     * @param subjectClassKey   subject class key
+     * @param subject           configuration subject
+     * @param configKey         configuration key
+     * @param <S>               type of subject
      */
     <S> void removeConfig(String subjectClassKey, S subject, String configKey);
 }