[VOL-5486] Fix deprecated versions

Change-Id: I3e03ea246020547ae75fa92ce8cf5cbba7e8f3bb
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/golang.org/x/sys/unix/fdset.go b/vendor/golang.org/x/sys/unix/fdset.go
index 9e83d18..62ed126 100644
--- a/vendor/golang.org/x/sys/unix/fdset.go
+++ b/vendor/golang.org/x/sys/unix/fdset.go
@@ -23,7 +23,5 @@
 
 // Zero clears the set fds.
 func (fds *FdSet) Zero() {
-	for i := range fds.Bits {
-		fds.Bits[i] = 0
-	}
+	clear(fds.Bits[:])
 }