Disable specification conversion tests with r8lib

Bug: b/243100570
Change-Id: I56d64aab94b4c3835dc5caa5f4f21fbf88ba79d4
diff --git a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/specification/ConvertExportReadTest.java b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/specification/ConvertExportReadTest.java
index a8a034d..468494f 100644
--- a/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/specification/ConvertExportReadTest.java
+++ b/src/test/java/com/android/tools/r8/desugar/desugaredlibrary/specification/ConvertExportReadTest.java
@@ -124,6 +124,8 @@
   }
 
   private void testMultiLevelUsingMain(LibraryDesugaringSpecification spec) throws IOException {
+    Assume.assumeTrue(ToolHelper.isLocalDevelopment());
+
     Path output = temp.newFile().toPath();
     DesugaredLibraryConverter.convertMultiLevelAnythingToMachineSpecification(
         spec.getSpecification(), spec.getDesugarJdkLibs(), spec.getLibraryFiles(), output);