Remove AutoTableLayout suppressions

tools/valgrind/memcheck/suppressions.txt

 # There are four kinds of suppressions in this file.
 # 1. third party stuff we have no control over
 #
 # 2. intentional unit test errors, or stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system (but a few aren't yet).
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 4190 matching lines @@
    fun:_ZN2v88internalL21ProfilerSignalHandlerEiP7siginfoPv
    obj:/lib/libpthread-2.11.1.so
 }
 {
    bug_156829
    Memcheck:Leak
    fun:_Znw*
    fun:_ZN7content23AudioInputDeviceManager23EnumerateOnDeviceThread*
 }
 {
-   bug_158510
-   Memcheck:Uninitialized
-   fun:_ZN7WebCore11RenderTable6layoutEv
-   ...
-   fun:_ZN7WebCore11RenderBlock6layoutEv
-}
-{
    bug_158514
    Memcheck:Uninitialized
    ...
    fun:_ZN2v88internal16ProfileGenerator16RecordTickSampleERKNS0_10TickSampleE
    fun:_ZN2v88internal23ProfilerEventsProcessor12ProcessTicksEj
    fun:_ZN2v88internal23ProfilerEventsProcessor3RunEv
    fun:_ZN2v88internalL11ThreadEntryEPv
 }
 {
    bug_159005
@@ skipping 2266 matching lines @@
    fun:_Znw*
    fun:_ZN7content27ServiceWorkerContextWrapperC1EPNS_14BrowserContextE
    fun:_ZN7content20StoragePartitionImpl6CreateEPNS_14BrowserContextEbRKN4base8FilePathE
    fun:_ZN7content23StoragePartitionImplMap3GetERKSsS2_b
    fun:_ZN7content12_GLOBAL__N_129GetStoragePartitionFromConfigEPNS_14BrowserContextERKSsS4_b
    fun:_ZN7content14BrowserContext19GetStoragePartitionEPS0_PNS_12SiteInstanceE
    fun:_ZN7content14BrowserContext26GetDefaultStoragePartitionEPS0_
    fun:_ZN7content21ShellBrowserMainParts21PreMainMessageLoopRunEv
    fun:_ZN7content15BrowserMainLoop21PreMainMessageLoopRunEv
 }