Remove depth field from SDL_CreateRGBSurfaceWithFormat and SDL_Create… (#6685)

* Remove depth field from SDL_CreateRGBSurfaceWithFormat and SDL_CreateRGBSurfaceWithFormatFrom
* Removed unused 'flags' parameter from SDL_CreateRGBSurface and SDL_CreateRGBSurfaceWithFormat
* Removed unused 'flags' parameter from SDL_ConvertSurface and SDL_ConvertSurfaceFormat

src/test/SDL_test_common.c

@@ -1766,7 +1766,7 @@ SDLTest_ScreenShot(SDL_Renderer *renderer)
     }
 
     SDL_RenderGetViewport(renderer, &viewport);
-    surface = SDL_CreateRGBSurface(0, viewport.w, viewport.h, 24,
+    surface = SDL_CreateRGBSurface(viewport.w, viewport.h, 24,
 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
                     0x00FF0000, 0x0000FF00, 0x000000FF,
 #else

src/test/SDL_test_font.c

@@ -3185,8 +3185,7 @@ int SDLTest_DrawCharacter(SDL_Renderer *renderer, int x, int y, Uint32 c)
         /*
          * Redraw character into surface
          */
-        character = SDL_CreateRGBSurface(SDL_SWSURFACE,
-            charWidth, charHeight, 32,
+        character = SDL_CreateRGBSurface(charWidth, charHeight, 32,
             0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
         if (character == NULL) {
             return -1;