Revert of DevTools: Avoid build errors when dynamic module and application names clash

Revert of DevTools: Avoid build errors when dynamic module and application names clash (patchset #2 id:20001 of https://codereview.chromium.org/607893002/)

Reason for revert:
This patch makes the "build_applications" target always dirty.

Original issue's description:
> DevTools: Avoid build errors when dynamic module and application names clash
> 
> This is a provisional fix that should let developers name
> dynamically loaded modules the same as existing applications.
> 
> Drive-by:
> - Clean up devtools.gypi
> - Stop generating obsolete code when concatenating workers
> 
> R=dgozman, pfeldman, yurys
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182769

TBR=dgozman@chromium.org,pfeldman@chromium.org,yurys@chromium.org
NOTREECHECKS=true
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182775

[apavlov, 2014-09-26 16:38:24]

Created Revert of DevTools: Avoid build errors when dynamic module and
application names clash

[commit-bot: I haz the power, 2014-09-26 16:39:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/607113002/1

[commit-bot: I haz the power, 2014-09-26 16:39:46]

Committed patchset #1 (id:1) as 182775