Remove unneeded suppressions for reverted unified Gesture Recognizer.

BUG=372143

Review URL: https://codereview.chromium.org/282573002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269857 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -6420,19 +6420,6 @@
    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
-}
 {
    bug_372226
    Memcheck:Uninitialized