disable faulty content assist setup
diff --git a/bundles/org.eclipse.wst.dtd.ui/src/org/eclipse/wst/dtd/ui/internal/provisional/StructuredTextViewerConfigurationDTD.java b/bundles/org.eclipse.wst.dtd.ui/src/org/eclipse/wst/dtd/ui/internal/provisional/StructuredTextViewerConfigurationDTD.java
index 0c09759..fb2e302 100644
--- a/bundles/org.eclipse.wst.dtd.ui/src/org/eclipse/wst/dtd/ui/internal/provisional/StructuredTextViewerConfigurationDTD.java
+++ b/bundles/org.eclipse.wst.dtd.ui/src/org/eclipse/wst/dtd/ui/internal/provisional/StructuredTextViewerConfigurationDTD.java
@@ -15,6 +15,7 @@
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.ITextHover;
+import org.eclipse.jface.text.contentassist.IContentAssistant;
 import org.eclipse.jface.text.reconciler.IReconciler;
 import org.eclipse.jface.text.source.ISourceViewer;
 import org.eclipse.wst.dtd.core.internal.provisional.text.IDTDPartitionTypes;
@@ -69,6 +70,10 @@
 		}
 		return configuredContentTypes;
 	}
+	
+	public IContentAssistant getContentAssistant(ISourceViewer sourceViewer) {
+		return null;
+	}
 
 	/*
 	 * (non-Javadoc)