Revert of suppress memory leaks from ui::GestureProviderAura::GestureProviderAura

Revert of suppress memory leaks from ui::GestureProviderAura::GestureProviderAura (https://codereview.chromium.org/278173002/)

Reason for revert:
The unified GR was reverted, so this suppression is not necessary.

TBR=zhaoqin

Original issue's description:
> suppress memory leaks from ui::GestureProviderAura::GestureProviderAura
> 
> TBR=tdresser@chromium.org
> BUG=372143
> TEST=waterfall
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=269580

TBR=zhaoqin@google.com
NOTREECHECKS=true
NOTRY=true
BUG=372143

[tdresser, 2014-05-12 15:18:34]

Created Revert of suppress memory leaks from
ui::GestureProviderAura::GestureProviderAura

[commit-bot: I haz the power, 2014-05-12 15:19:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tdresser@chromium.org/279263002/1

[commit-bot: I haz the power, 2014-05-12 15:20:06]

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

[commit-bot: I haz the power, 2014-05-12 15:20:07]

Failed to apply patch for tools/valgrind/memcheck/suppressions.txt:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file tools/valgrind/memcheck/suppressions.txt
  Hunk #1 FAILED at 6420.
  1 out of 1 hunk FAILED -- saving rejects to file
tools/valgrind/memcheck/suppressions.txt.rej

Patch:       tools/valgrind/memcheck/suppressions.txt
Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt
b/tools/valgrind/memcheck/suppressions.txt
index
8a0c64c4fa5dcea671676603cc1b102d3e3653fd..f5b0ba6c971cc73f739f03080e7bb459307f8463
100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -6420,16 +6420,3 @@
    fun:_ZN8feedback*FeedbackUploaderTest*
    fun:_ZN7testing8internal15TestFactoryImplIN8feedback*
 }
-{
-   bug_372143
-   Memcheck:Leak
-   fun:_Znw*
-   ...
-  
fun:_ZN2ui12_GLOBAL__N_121CreateGestureProviderEPNS_25GestureProviderAuraClientE
-  
fun:_ZN2ui21GestureRecognizerImpl29GetGestureProviderForConsumerEPNS_15GestureConsumerE
-  
fun:_ZN2ui21GestureRecognizerImpl27ProcessTouchEventForGestureERKNS_10TouchEventENS_11EventResultEPNS_15GestureConsumerE
-  
fun:_ZN4aura21WindowEventDispatcher17PostDispatchEventEPN2ui11EventTargetERKNS1_5EventE
-  
fun:_ZN2ui23EventDispatcherDelegate13DispatchEventEPNS_11EventTargetEPNS_5EventE
-   fun:_ZN2ui14EventProcessor17OnEventFromSourceEPNS_5EventE
-  
fun:_ZN4aura4test12AuraTestBase34DispatchEventUsingWindowDispatcherEPN2ui5EventE
-}

[tdresser, 2014-05-12 15:23:58]

On 2014/05/12 15:18:34, tdresser wrote:
> Created Revert of suppress memory leaks from
> ui::GestureProviderAura::GestureProviderAura

Landing https://codereview.chromium.org/282573002/ instead.