diff --git a/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java b/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java
index 655a519fd8..1325ea8147 100644
--- a/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java
+++ b/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java
@@ -170,19 +170,11 @@ public void componentDiscovered( ComponentDiscoveryEvent event )
     //
     // ----------------------------------------------------------------------
 
-    public boolean isPluginInstalled( String groupId, String artifactId )
+    private boolean isPluginInstalled( String groupId, String artifactId )
     {
         return pluginDescriptors.containsKey( PluginDescriptor.constructPluginKey( groupId, artifactId ) );
     }
 
-    public void verifyPluginForGoal( String goalName, MavenSession session )
-        throws ArtifactResolutionException, PluginManagerException
-    {
-        String pluginId = PluginDescriptor.getPluginArtifactIdFromGoal( goalName );
-
-        verifyPlugin( PluginDescriptor.getDefaultPluginGroupId(), pluginId, session );
-    }
-
     public void verifyPlugin( String groupId, String artifactId, MavenSession session )
         throws ArtifactResolutionException, PluginManagerException
     {
diff --git a/maven-core/src/main/java/org/apache/maven/plugin/PluginManager.java b/maven-core/src/main/java/org/apache/maven/plugin/PluginManager.java
index 2dcee9836e..07600630b8 100644
--- a/maven-core/src/main/java/org/apache/maven/plugin/PluginManager.java
+++ b/maven-core/src/main/java/org/apache/maven/plugin/PluginManager.java
@@ -35,9 +35,6 @@ void executeMojo( MavenSession session, MojoDescriptor mojoDescriptor )
 
     MojoDescriptor getMojoDescriptor( String goalId );
 
-    void verifyPluginForGoal( String goalName, MavenSession session )
-        throws ArtifactResolutionException, PluginManagerException;
-
     void verifyPlugin( String groupId, String artifactId, MavenSession session )
         throws ArtifactResolutionException, PluginManagerException;