Revert "Merge branch 'master' of https://github.com/1technophile/OpenMQTTGateway"

This reverts commit a70c33a68e, reversing
changes made to f515f9c03a.

lib/ArduinoJson/test/Misc/StringBuilder.cpp

@@ -1,50 +0,0 @@
-// ArduinoJson - arduinojson.org
-// Copyright Benoit Blanchon 2014-2018
-// MIT License
-
-#include <ArduinoJson.h>
-#include <catch.hpp>
-
-using namespace ArduinoJson::Internals;
-
-template <typename StringBuilder, typename String>
-void common_tests(StringBuilder& sb, const String& output) {
-  SECTION("InitialState") {
-    REQUIRE(std::string("") == output);
-  }
-
-  SECTION("EmptyString") {
-    REQUIRE(0 == sb.print(""));
-    REQUIRE(std::string("") == output);
-  }
-
-  SECTION("OneString") {
-    REQUIRE(4 == sb.print("ABCD"));
-    REQUIRE(std::string("ABCD") == output);
-  }
-
-  SECTION("TwoStrings") {
-    REQUIRE(4 == sb.print("ABCD"));
-    REQUIRE(4 == sb.print("EFGH"));
-    REQUIRE(std::string("ABCDEFGH") == output);
-  }
-}
-
-TEST_CASE("StaticStringBuilder") {
-  char output[20];
-  StaticStringBuilder sb(output, sizeof(output));
-
-  common_tests(sb, static_cast<const char*>(output));
-
-  SECTION("OverCapacity") {
-    REQUIRE(19 == sb.print("ABCDEFGHIJKLMNOPQRSTUVWXYZ"));
-    REQUIRE(0 == sb.print("ABC"));
-    REQUIRE(std::string("ABCDEFGHIJKLMNOPQRS") == output);
-  }
-}
-
-TEST_CASE("DynamicStringBuilder") {
-  std::string output;
-  DynamicStringBuilder<std::string> sb(output);
-  common_tests(sb, output);
-}