Revert 201932 "Add API function chrome.notifications.getAll"

Revert 201932 "Add API function chrome.notifications.getAll"

Broke Mac ASAN Tests (1):
http://build.chromium.org/p/chromium.memory/builders/Mac%20ASAN%20Tests%20%281%29/builds/10683

NotificationsApiTest.TestGetAll: 
dyld: warning, unknown environment variable: DYLD_NO_PIE
dyld: warning, unknown environment variable: DYLD_NO_PIE
dyld: warning, unknown environment variable: DYLD_NO_PIE
dyld: warning, unknown environment variable: DYLD_NO_PIE
[6552:3847:0523/180035:INFO:gpu_command_buffer_stub.cc(468)] Created virtual GL
context.
../../chrome/browser/extensions/api/notifications/notifications_apitest.cc:331:
Failure
Value of: kNotificationsToCreate
Actual: 4
Expected: return_value->size()
Which is: 0

> Add API function chrome.notifications.getAll
> 
> This function returns an object whose keys are the notification
> IDs of all notifications created by that extension.
> 
> BUG=240924
> 
> Review URL: https://chromiumcodereview.appspot.com/14767029

TBR=dewittj@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=201969

[Dan Beam, 2013-05-24 03:46:03]

Committed patchset #1 manually as r201969.