remove example_project, because bbbuild itself is the example project

example-project/.gitignore

@@ -1 +0,0 @@
-/bbbuild

example-project/constants.c

@@ -1,5 +0,0 @@
-#include "constants.h"
-
-const int k_window_height = 800;
-const int k_window_width = 600;
-const char *k_window_title = "Hello World";

example-project/constants.h

@@ -1,5 +0,0 @@
-#pragma once
-
-extern const int k_window_width;
-extern const int k_window_height;
-extern const char *k_window_title;

example-project/main.c

@@ -1,16 +0,0 @@
-//#bb pkgs := sdl2
-
-#include <SDL.h>
-#include "constants.h"
-
-int main() {
-	SDL_Init(SDL_INIT_VIDEO);
-	SDL_Window *win = SDL_CreateWindow(k_window_title,
-			SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
-			k_window_width, k_window_height, 0);
-
-	SDL_Delay(5000);
-
-	SDL_DestroyWindow(win);
-	SDL_Quit();
-}