[DevTools] Remove dead code from devtools_file_system_indexer.cc

[DevTools] Remove dead code from devtools_file_system_indexer.cc

Index is only instantiated as a leak LazyInstance, so its destructor is
never invoked. Index::PrintStats() is never called anywhere.

This cleans up the code and avoids -Wunused-function warnings in recent
versions of GCC.

R=dgozman@chromium.org,pfeldman@chromium.org

Committed: https://crrev.com/65005e8e575b752ab1fa84767dbcd49595f26791
Cr-Commit-Position: refs/heads/master@{#432458}

[dgozman, 2016-11-15 19:31:59]

lgtm

[Raphael Kubo da Costa (rakuco), 2016-11-16 09:01:01]

The CQ bit was checked by raphael.kubo.da.costa@intel.com

[commit-bot: I haz the power, 2016-11-16 09:01:59]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-16 11:17:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-16 11:22:13]

Description was changed from

==========
[DevTools] Remove dead code from devtools_file_system_indexer.cc

Index is only instantiated as a leak LazyInstance, so its destructor is
never invoked. Index::PrintStats() is never called anywhere.

This cleans up the code and avoids -Wunused-function warnings in recent
versions of GCC.

R=dgozman@chromium.org,pfeldman@chromium.org
==========

to

==========
[DevTools] Remove dead code from devtools_file_system_indexer.cc

Index is only instantiated as a leak LazyInstance, so its destructor is
never invoked. Index::PrintStats() is never called anywhere.

This cleans up the code and avoids -Wunused-function warnings in recent
versions of GCC.

R=dgozman@chromium.org,pfeldman@chromium.org

Committed: https://crrev.com/65005e8e575b752ab1fa84767dbcd49595f26791
Cr-Commit-Position: refs/heads/master@{#432458}
==========

[commit-bot: I haz the power, 2016-11-16 11:22:14]

Patchset 1 (id:??) landed as
https://crrev.com/65005e8e575b752ab1fa84767dbcd49595f26791
Cr-Commit-Position: refs/heads/master@{#432458}