Revert "add integration arg to yaze_test for test_engine window"

This reverts commit 1c706b9443.

src/test/yaze_test.cc

@@ -1,6 +1,4 @@
 #define SDL_MAIN_HANDLED
-
-#include <SDL.h>
 #include <gtest/gtest.h>
 
 #include "absl/debugging/failure_signal_handler.h"
@@ -11,16 +9,6 @@ int main(int argc, char* argv[]) {
 
   absl::FailureSignalHandlerOptions options;
   absl::InstallFailureSignalHandler(options);
-
-  // Support the ability to launch an integration test window.
-  SDL_SetMainReady();
-
-  // Check if the argument says `integration`
-  if (argc > 1 && std::string(argv[1]) == "integration") {
-    // TODO: Create the debugging window with the test engine.
-    return EXIT_SUCCESS;
-  }
-
   ::testing::InitGoogleTest(&argc, argv);
   return RUN_ALL_TESTS();
 }