also remove unsused includes from query_filter.cpp

no impact on Makefile here

Author: oschonrock

src/query_filter.cpp

@@ -7,9 +7,7 @@
 #include <fcntl.h>
 #include <getopt.h>
 #include <inttypes.h>
-#include <iostream>
 #include <limits.h>
-#include <sstream>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>