Remove FileSystemURLRequestJob suppressions, as the only still-leaky

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 2c8e566d117a1ad521ff56bfc2b10f45b2d28eff..01ec32c5ba8d83d25be9950ba3d9de2421a9cdf2 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -860,6 +860,13 @@
    fun:_Znw*
    fun:_ZN10disk_cache14StatsHistogram10FactoryGet*
 }
+{
+   bug_83345
+   Memcheck:Leak
+   ...
+   fun:_ZN4base23LeakyLazyInstanceTraits*NewEPv
+   fun:_ZN4base12LazyInstance*LeakyLazyInstanceTraits*PointerEv
+}
 
 #-----------------------------------------------------------------------
 # 3. Suppressions for real chromium bugs that are not yet fixed.
@@ -4244,20 +4251,6 @@
    fun:_ZN9talk_base10TaskRunner8RunTasksEv
 }
 {
-   bug_80002a
-   Memcheck:Leak
-   fun:_Znw*
-   ...
-   fun:*FileSystemURLRequestJobTest5SetUpEv
-}
-{
-   bug_80002b
-   Memcheck:Leak
-   fun:_Znw*
-   ...
-   fun:*FileSystemDirURLRequestJobTest5SetUpEv
-}
-{
    bug_80022
    Memcheck:Leak
    fun:_Znw*