Reland "Don't enable jdwp by default on userdebug builds""

This reverts commit 50c258ca.

Reason for revert: Relanding after fixes for the failures Fixes:
1. Mark the com.android.perftests.core as profileable from shell so
that we would be able to read /proc/self/io
2. Fix a JDWP test to expect the new behaviour on userdebug builds.
We can no longer attach debugger on profileable apps on userdebug builds

Bug: 240410400, 246616689
Test: System boots
Change-Id: I6fff6f1a683893244bc2d40f930044747befb2ce