Remove hard path for library

Compile.sh

@@ -1 +1 @@
-g++ main.cpp Missiles.cpp -l Box2D -Wl,-rpath=/usr/local/lib/ -l SDL -l SDL_gfx -std=c++11
+g++ main.cpp Missiles.cpp -l Box2D -l SDL -l SDL_gfx -std=c++11