Revert "Introduce derive_classpath service." am: c0e469a333 am: 008138b0f2

Original change: https://android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/1645498

Change-Id: I580d7210e2d14a830f0043f889d69007c23ada5d
diff --git a/manifest.json b/manifest.json
index 92194e9..deeb29e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,4 +1,4 @@
 {
   "name": "com.android.sdkext",
-  "version": 300900700
+  "version": 300000000
 }