Remove unneeded suppression for reverted unified Gesture Recognizer.

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 2e5ace24aec7bbc45cc1b9a3ae48d567c1de888d..3e1447c0a0b2ec85760ae7246cc6fec99a83eb8a 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -6421,19 +6421,6 @@
    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
    ...