citra-room: Use the default OpenGL loader instead of SDL_GL_GetProcAddress

Fixes #3538

src/dedicated_room/citra-room.cpp

@@ -8,8 +8,6 @@
 #include <regex>
 #include <string>
 #include <thread>
-#define SDL_MAIN_HANDLED
-#include <SDL.h>
 #include <glad/glad.h>
 
 #ifdef _MSC_VER
@@ -60,7 +58,7 @@ int main(int argc, char** argv) {
     char* endarg;
 
     // This is just to be able to link against core
-    gladLoadGLLoader(static_cast<GLADloadproc>(SDL_GL_GetProcAddress));
+    gladLoadGL();
 
     std::string room_name;
     std::string password;