remove support for emulating annotation types.
Instead tests come with their own library of annotation types.
diff --git a/contrib/org.eclipse.objectteams.jdt.nullity.tests/annotations.jardesc b/contrib/org.eclipse.objectteams.jdt.nullity.tests/annotations.jardesc
new file mode 100644
index 0000000..8aa7bc0
--- /dev/null
+++ b/contrib/org.eclipse.objectteams.jdt.nullity.tests/annotations.jardesc
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<jardesc>
+    <jar path="org.eclipse.objectteams.jdt.nullity.tests/lib/nullAnnotations.jar"/>
+    <options buildIfNeeded="true" compress="true" descriptionLocation="/org.eclipse.objectteams.jdt.nullity.tests/annotations.jardesc" exportErrors="true" exportWarnings="true" includeDirectoryEntries="false" overwrite="false" saveDescription="true" storeRefactorings="false" useSourceFolders="false"/>
+    <storedRefactorings deprecationInfo="true" structuralOnly="false"/>
+    <selectedProjects/>
+    <manifest generateManifest="true" manifestLocation="" manifestVersion="1.0" reuseManifest="false" saveManifest="false" usesManifest="true">
+        <sealing sealJar="false">
+            <packagesToSeal/>
+            <packagesToUnSeal/>
+        </sealing>
+    </manifest>
+    <selectedElements exportClassFiles="true" exportJavaFiles="false" exportOutputFolder="false">
+        <javaElement handleIdentifier="=org.eclipse.objectteams.jdt.nullity.tests/annotations"/>
+        <file path="/org.eclipse.objectteams.jdt.nullity.tests/build.properties"/>
+        <file path="/org.eclipse.objectteams.jdt.nullity.tests/.project"/>
+        <file path="/org.eclipse.objectteams.jdt.nullity.tests/.classpath"/>
+    </selectedElements>
+</jardesc>