pktgen: remove unnecessary break after goto

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 5b05e36..8b849dd 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -804,7 +804,6 @@
 		case '\t':
 		case ' ':
 			goto done_str;
-			break;
 		default:
 			break;
 		}