Remove is_comma_separated_string from test_utils

is_comma_separated_string is part of #474 and not yet merged

Author: mmd-osm

test/test_utils.cpp

@@ -19,13 +19,6 @@ TEST_CASE("util_escape", "[util]") {
   CHECK(escape("ab\\\\c\\\"d1'234") == "\"ab\\\\\\\\c\\\\\\\"d1'234\"");
 }
 
-TEST_CASE("util_join_comma_separated", "[util]") {
-  CHECK(to_comma_separated_string<std::vector<int>>({}) == "");
-  CHECK(to_comma_separated_string<std::vector<int>>({1}) == "1");
-  CHECK(to_comma_separated_string<std::vector<int>>({1, 2, 3, 4}) == "1,2,3,4");
-}
-
-
 TEST_CASE("util_parse_ruby_number", "[util]") {
   SECTION("Valid number") {
     CHECK(parse_ruby_number<int>("1") == 1);