Revert "Libcore: Improve BaseDexClassLoader.toString"

This reverts commit 100fd826ec84a287719121fb6412156f0dfd2a53.

Reason for revert: Leads to infinite recursion in some apps (http://b/147481074)

Change-Id: If0137da17fc24ceb94dc378554651d68b4a25ae9
Bug: 147481074
1 file changed