[sql] Remove fts2 patches.

[sql] Remove fts2 patches.

Chromium's has not built fts2 for a few weeks with no problems reported,
seems safe to remove the patches for M-44.

SQLITE_CORE was only needed to compile the fts2 files independently from
the amalgamation.

The README.chromium changes were leftovers from the big import that I'm
arbitrarily dropping here.

BUG=455817
Committed: https://crrev.com/0450d83829cb86ffb625cb8248a612dcb0e1d1fd
Cr-Commit-Position: refs/heads/master@{#325245}

[Scott Hess - ex-Googler, 2015-04-10 20:52:12]

shess@chromium.org changed reviewers:
+ michaeln@chromium.org

[Scott Hess - ex-Googler, 2015-04-10 20:52:13]

I figure now that M-43 has branched, might as well finish this off.

This caused no diff to the amalgamation, and in addition to sql_unittests I ran
through the SQLite tests, and everything looks good.

[michaeln, 2015-04-13 20:12:17]

r/s lgtm

[Scott Hess - ex-Googler, 2015-04-13 20:17:50]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2015-04-13 20:18:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1073293002/1

[commit-bot: I haz the power, 2015-04-14 05:38:48]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-04-14 05:38:48]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)

[Scott Hess - ex-Googler, 2015-04-14 05:46:55]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2015-04-14 05:47:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1073293002/1

[commit-bot: I haz the power, 2015-04-14 12:13:08]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-04-14 12:13:09]

Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)

[Scott Hess - ex-Googler, 2015-04-15 14:10:01]

Put back SQLITE_CORE only for the icu component for iOS

[Scott Hess - ex-Googler, 2015-04-15 14:10:40]

The CQ bit was checked by shess@chromium.org

[Scott Hess - ex-Googler, 2015-04-15 14:10:41]

The patchset sent to the CQ was uploaded after l-g-t-m from
michaeln@chromium.org
Link to the patchset: https://codereview.chromium.org/1073293002/#ps20001
(title: "Put back SQLITE_CORE only for the icu component for iOS")

[commit-bot: I haz the power, 2015-04-15 14:10:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1073293002/20001

[Scott Hess - ex-Googler, 2015-04-15 14:11:53]

On 2015/04/15 14:10:01, Scott Hess wrote:
> Put back SQLITE_CORE only for the icu component for iOS

iOS compiles an extension from the Chromium SQLite tree for use with the iOS
system-provided SQLite.

[commit-bot: I haz the power, 2015-04-15 15:20:54]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-04-15 15:21:33]

Patchset 2 (id:??) landed as
https://crrev.com/0450d83829cb86ffb625cb8248a612dcb0e1d1fd
Cr-Commit-Position: refs/heads/master@{#325245}