Pass no_internal for building the R8_LIB

Change-Id: Id2b961b973c89309c79e7682b55c627a464b8d02
diff --git a/tools/create_maven_release.py b/tools/create_maven_release.py
index 401c92a..72098a3 100755
--- a/tools/create_maven_release.py
+++ b/tools/create_maven_release.py
@@ -209,7 +209,7 @@
   if not is_r8lib:
     gradle.RunGradleExcludeDeps([utils.R8])
   else:
-    gradle.RunGradle([utils.R8LIB])
+    gradle.RunGradle([utils.R8LIB, '-Pno_internal'])
   # Create directory structure for this version.
   version = determine_version()
   with utils.TempDir() as tmp_dir: