Remove valgrind suppressions for bug49590, which is fixed....

tools/valgrind/memcheck/suppressions_mac.txt

Index: tools/valgrind/memcheck/suppressions_mac.txt
===================================================================
--- tools/valgrind/memcheck/suppressions_mac.txt	(revision 55112)
+++ tools/valgrind/memcheck/suppressions_mac.txt	(working copy)
@@ -1410,43 +1410,6 @@
    fun:_ZN7testing8internal15TestFactoryImplI45DownloadManagerTest_TestDownloadFilename_TestE10CreateTestEv
 }
 {
-   bug_49590a
-   Memcheck:Leak
-   fun:calloc
-   fun:_internal_class_createInstanceFromZone
-   fun:_internal_class_createInstance
-   fun:+[NSObject allocWithZone:]
-   fun:+[NSObject alloc]
-   fun:_ZN12_GLOBAL__N_*BalloonControllerTest_*Test_Test8TestBodyEv
-}
-{
-   bug_49590b
-   Memcheck:Leak
-   fun:calloc
-   fun:_internal_class_createInstanceFromZone
-   fun:_internal_class_createInstance
-   fun:+[NSObject allocWithZone:]
-   fun:+[NSObject alloc]
-   fun:-[MenuController addItemToMenu:atIndex:fromModel:modelIndex:]
-   fun:-[MenuController menuFromModel:]
-   fun:-[MenuController menu]
-   fun:-[MenuController initWithModel:useWithPopUpButtonCell:]
-   fun:-[BalloonController initWithBalloon:]
-   fun:_ZN12_GLOBAL__N_*BalloonControllerTest_ShowAndCloseTest_Test8TestBodyEv
-}
-{
-   bug_49590c
-   Memcheck:Cond
-   fun:_ZN12_GLOBAL__N_136BalloonControllerTest_SizesTest_Test8TestBodyEv
-}
-{
-   bug_49590d
-   Memcheck:Leak
-   ...
-   fun:-[BalloonController initWithBalloon:]
-   fun:_ZN12_GLOBAL__N_136BalloonControllerTest_SizesTest_Test8TestBodyEv
-}
-{
    bug_49750
    Memcheck:Leak
    fun:_Znw*