Remove flag enable_dump

Since this flag was launched, remove it and make the corresponding code
unconditional.

Bug: 344987718
Test: presubmit
Flag: EXEMPT removing android.security.keystore2.enable_dump
Ignore-AOSP-First: N/A
Change-Id: I9040b7377cb19bba7f6ec3f14605b98b285044a3
2 files changed