vty: cosmetic: drop redundant 'break' statements

Change-Id: I54ee7c3c6fe16a413d0e1128c7358ff6e4b76c6a
diff --git a/src/vty/vty.c b/src/vty/vty.c
index ebdf9fc..e335f3a 100644
--- a/src/vty/vty.c
+++ b/src/vty/vty.c
@@ -1143,14 +1143,12 @@
 		vty_prompt(vty);
 		vty_redraw_line(vty);
 		return;
-		break;
 	case CMD_ERR_NO_MATCH:
 		cmd_free_strvec(vline);
 		vty_out(vty, "%% There is no matched command.%s", VTY_NEWLINE);
 		vty_prompt(vty);
 		vty_redraw_line(vty);
 		return;
-		break;
 	}
 
 	/* Get width of command string. */