Revert "shill: re-enable -Wformat-nonliteral" This reverts commit 6d9cd7f009fe92781fb00175de0b1c791dfb03d2. This patch broke x86-generic-ASAN. BUG=chromium:367412 TEST=None Change-Id: I609f049f3c20fb872a75e083d27ca5b3773906b8 Reviewed-on: https://chromium-review.googlesource.com/197190 Reviewed-by: Julius Werner <jwerner@chromium.org> Commit-Queue: Julius Werner <jwerner@chromium.org> Tested-by: Julius Werner <jwerner@chromium.org>