Remove unnecessary --hide-package options

The com.android.okhttp and com.android.org.conscrypt packages are no
longer present in the input source so do not need hiding.

Bug: 142113521
Test: m checkbuild
Change-Id: I303b054ec114450b5fce3482eddf3cc3749d3814
diff --git a/Android.bp b/Android.bp
index 7850377..590f237 100644
--- a/Android.bp
+++ b/Android.bp
@@ -958,8 +958,7 @@
 
 metalava_framework_docs_args = "--manifest $(location core/res/AndroidManifest.xml) " +
     "--ignore-classes-on-classpath " +
-    "--hide-package com.android.okhttp " +
-    "--hide-package com.android.org.conscrypt --hide-package com.android.server " +
+    "--hide-package com.android.server " +
     "--error UnhiddenSystemApi " +
     "--hide RequiresPermission " +
     "--hide MissingPermission --hide BroadcastBehavior " +