Remove valgrind suppression for bug 87245.

It hasn't triggered in 1000+ valgrind runs.

BUG=87245
TBR=glider

Review URL: http://codereview.chromium.org/8601001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110627 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/memcheck/suppressions.txt

@@ -3769,15 +3769,6 @@
    fun:_Z11BrowserMainRK18MainFunctionParams
    fun:*RunNamedProcessTypeMainERKSsRK18MainFunctionParams
 }
-{
-   bug_87245
-   Memcheck:Leak
-   fun:_Znw*
-   fun:_Z17NewRunnableMethodIN11webkit_glue18WebMediaPlayerImpl5ProxyEMS2_FvvEEP14CancelableTaskPT_T0_
-   fun:_ZN11webkit_glue18WebMediaPlayerImpl5Proxy7RepaintEv
-   fun:_ZN11webkit_glue17VideoRendererImpl16OnFrameAvailableEv
-   fun:_ZN5media17VideoRendererBase10ThreadMainEv
-}
 {
    bug_87408
    Memcheck:Addr4