sql: Remove redundant PRAGMA secure_delete=ON.

Chrome builds SQLite with SQLITE_SECURE_DELETE [1], so the default value
for the secure_delete PRAGMA [2] is already true.

[1] https://www.sqlite.org/compile.html#secure_delete
[2] https://www.sqlite.org/pragma.html#pragma_secure_delete

Bug: 910955
Change-Id: I27ef32770a980c8c6030675e79698d7a31e47a9d
Reviewed-on: https://chromium-review.googlesource.com/c/1357824
Commit-Queue: Victor Costan <pwnall@chromium.org>
Reviewed-by: Chris Mumford <cmumford@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#613866}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: f1e9443b7cb1558547ab5fe61a49b5d2f92c4c10
3 files changed