removed the sendmsg/ngx_channel valgrind suppression rules.

Author: agentzh

valgrind.suppress

@@ -1,13 +1,3 @@
-{
-<insert_a_suppression_name_here>
-Memcheck:Param
-socketcall.sendmsg(msg.msg_iov[i])
-fun:sendmsg
-fun:ngx_write_channel
-fun:ngx_signal_worker_processes
-fun:ngx_master_process_cycle
-fun:main
-}
 {
  <insert_a_suppression_name_here>
  Memcheck:Cond
@@ -363,16 +353,6 @@ fun:main
  fun:ngx_master_process_cycle
  fun:main
 }
-{
- <insert_a_suppression_name_here>
- Memcheck:Param
- socketcall.sendmsg(msg.msg_iov[i])
- fun:__sendmsg_nocancel
- fun:ngx_write_channel
- fun:ngx_signal_worker_processes
- fun:ngx_master_process_cycle
- fun:main
-}
 {
  <insert_a_suppression_name_here>
  Memcheck:Leak