Revert "Add service-connectivity to tethering APEX"

Revert "Set setCurrentProxyScriptUrl as public"

Revert submission 1532910-connectivity_jar_in_apex

Reason for revert: Breaks boot tests: b/176969905
Reverted Changes:
Ie41a5b569:Set setCurrentProxyScriptUrl as public
Id7b6a4664:Move service-connectivity to the tethering APEX
Ia7cb83834:Add service-connectivity to tethering APEX

Change-Id: I9f31d4810a92e620f02cc8d24bdf18fe28001a2b
diff --git a/Tethering/apex/Android.bp b/Tethering/apex/Android.bp
index c99121c..a1e7fd2 100644
--- a/Tethering/apex/Android.bp
+++ b/Tethering/apex/Android.bp
@@ -16,17 +16,9 @@
 
 apex {
     name: "com.android.tethering",
-    // TODO: make updatable again once this contains only updatable artifacts (in particular, this
-    // cannot build as updatable unless service-connectivity builds against stable API).
-    // updatable: true,
-    // min_sdk_version: "30",
-    java_libs: [
-        "framework-tethering",
-        "service-connectivity",
-    ],
-    jni_libs: [
-        "libservice-connectivity",
-    ],
+    updatable: true,
+    min_sdk_version: "30",
+    java_libs: ["framework-tethering"],
     bpfs: ["offload.o"],
     apps: ["Tethering"],
     manifest: "manifest.json",