Drop old rules against halgrind bugs

tools/valgrind/fscanf.suppr

@@ -1,60 +0,0 @@
-{
-   fscanf error
-   Memcheck:Cond
-   fun:__GI___strncasecmp_l
-   fun:____strtod_l_internal
-   fun:_IO_vfscanf
-}
-
-{
-   fprintf cond error
-   Memcheck:Cond
-   ...
-   fun:vfprintf
-   fun:buffered_vfprintf
-   fun:vfprintf
-   fun:fprintf
-}
-
-{
-   fprintf value error
-   Memcheck:Value8
-   ...
-   fun:vfprintf
-   fun:buffered_vfprintf
-   fun:vfprintf
-   fun:fprintf
-}
-
-{
-   fprintf addr4 error
-   Memcheck:Addr4
-   ...
-   fun:vfprintf
-   fun:buffered_vfprintf
-   fun:vfprintf
-   fun:fprintf
-   fun:main
-}
-
-{
-   fprintf addr8 error
-   Memcheck:Addr8
-   ...
-   fun:vfprintf
-   fun:buffered_vfprintf
-   fun:vfprintf
-   fun:fprintf
-   fun:main
-}
-
-{
-   fprintf addr1 error
-   Memcheck:Addr1
-   ...
-   fun:vfprintf
-   fun:buffered_vfprintf
-   fun:vfprintf
-   fun:fprintf
-   fun:main
-}