[Android] Disable the deletions-only check for findbugs_known_bugs.txt.

[Android] Disable the deletions-only check for findbugs_known_bugs.txt.

The deletions-only check is causing a lot of issues with the upstreaming
effort, so I'm disabling it temporarily.

BUG=

Committed: https://crrev.com/d4646647dea3fa62f5682af240009b9dbf29b4b9
Cr-Commit-Position: refs/heads/master@{#311476}

[jbudorick, 2015-01-14 00:13:36]

jbudorick@chromium.org changed reviewers:
+ klundberg@chromium.org

[klundberg, 2015-01-14 02:45:29]

lgtm

[jbudorick, 2015-01-14 14:04:57]

The CQ bit was checked by jbudorick@chromium.org

[commit-bot: I haz the power, 2015-01-14 14:05:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/820053003/1

[commit-bot: I haz the power, 2015-01-14 15:25:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-14 15:26:00]

Patchset 1 (id:??) landed as
https://crrev.com/d4646647dea3fa62f5682af240009b9dbf29b4b9
Cr-Commit-Position: refs/heads/master@{#311476}