Revert "add a Lua helper to check for a file in the library path"

This reverts commit 27fb0f1973.

src/stratagus/script.cpp

@@ -289,17 +289,6 @@ static int CclLoadBuffer(lua_State *l)
 	return 1;
 }
 
-/**
- ** Check if a file is accessible.
- ** @param l Lua state
- ** @return true or false
- **/
-static int CclCanAccessFile(lua_State *l) {
-	LuaCheckArgs(l, 1);
-	lua_pushboolean(l, CanAccessFile(LuaToString(l, 1)));
-	return 0;
-}
-
 /**
 **  Convert lua string in char*.
 **  It checks also type and exit in case of error.
@@ -2450,8 +2439,6 @@ void ScriptRegister()
 	lua_register(Lua, "Load", CclLoad);
 	lua_register(Lua, "LoadBuffer", CclLoadBuffer);
 
-	lua_register(Lua, "CanAccessFile", CclCanAccessFile);
-
 	lua_register(Lua, "DebugPrint", CclDebugPrint);
 }