remove unused oneshot flag

src/event/modules/ngx_poll_module.c

diff --git a/src/event/modules/ngx_poll_module.c b/src/event/modules/ngx_poll_module.c
index cb9c90d..199b25b 100644
--- a/src/event/modules/ngx_poll_module.c
+++ b/src/event/modules/ngx_poll_module.c
@@ -155,8 +155,6 @@
         ev->index = e->index;
     }
 
-    ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
-
     return NGX_OK;
 }
 

src/event/modules/ngx_select_module.c

diff --git a/src/event/modules/ngx_select_module.c b/src/event/modules/ngx_select_module.c
index feceb98..9ecac7f 100644
--- a/src/event/modules/ngx_select_module.c
+++ b/src/event/modules/ngx_select_module.c
@@ -180,7 +180,6 @@
 #endif
 
     ev->active = 1;
-    ev->oneshot = (u_char) ((flags & NGX_ONESHOT_EVENT) ? 1 : 0);
 
     event_index[nevents] = ev;
     ev->index = nevents;