Don't obfuscate account names in "dumpsys account"

Bug 111937873 was about printing account names on logcat... Not about dumpsys.

(Besides -- "Account visibility" wasn't obfuscated.)

c.f. http://b/62828293#comment14

Change-Id: Ib224e51a993608fc0bc00dc3852b940ae7f2c357
Fix: 111937873
Test: Run "dumpsys account" and ensure the account names are not obfuscated.