Fix tests and missing model after rebase

java/ql/test/library-tests/frameworks/netty/generated/TestA.java

@@ -4,7 +4,7 @@ import io.netty.resolver.SimpleNameResolver;
 import io.netty.util.concurrent.Future;
 
 // Test case generated by GenerateFlowTestCase.ql
-public class Test {
+public class TestA {
 
 	Object source() {
 		return null;

java/ql/test/library-tests/frameworks/netty/manual/test.ql

@@ -9,3 +9,7 @@ class Conf extends DefaultTaintFlowConf {
     node instanceof RemoteFlowSource
   }
 }
+
+class LegacyConfig extends EnableLegacyConfiguration {
+  LegacyConfig() { this instanceof Unit }
+}

java/ql/test/library-tests/frameworks/netty/options

@@ -1 +0,0 @@
-//semmle-extractor-options: --javac-args -cp ${testdir}/../../../stubs/netty-4.1.x

java/ql/test/library-tests/frameworks/netty/test.ql

@@ -1,2 +0,0 @@
-import java
-import TestUtilities.InlineFlowTest