IPC fuzzer: drop -fsanitize-coverage flag when dropping -fsanitize-address

IPC fuzzer: drop -fsanitize-coverage flag when dropping -fsanitize-address

Otherwise the new version of Clang warns about -fsanitize-coverage being unused.

BUG=442315, 431803
Committed: https://crrev.com/15e1e059037ac923a56537223d741670a826be04
Cr-Commit-Position: refs/heads/master@{#308376}

[hans, 2014-12-15 17:37:30]

hans@chromium.org changed reviewers:
+ glider@chromium.org, inferno@chromium.org, thakis@chromium.org

[hans, 2014-12-15 17:37:31]

This is to address https://code.google.com/p/chromium/issues/detail?id=442315

Please take a look.

[inferno, 2014-12-15 17:38:52]

The CQ bit was checked by inferno@chromium.org

[inferno, 2014-12-15 17:38:53]

lgtm

[commit-bot: I haz the power, 2014-12-15 17:40:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/805913002/1

[Alexander Potapenko, 2014-12-15 18:00:28]

lgtm

[commit-bot: I haz the power, 2014-12-15 18:39:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-15 18:40:37]

Patchset 1 (id:??) landed as
https://crrev.com/15e1e059037ac923a56537223d741670a826be04
Cr-Commit-Position: refs/heads/master@{#308376}