Set correct script path on Linux

Script path is now ApplicationContext::getRuntimeDataPath() + "scripts" on all
platforms, rather than using different logic on Linux. This should work for
both relocatable and non-relocatable builds because getRuntimeDataPath returns
a different value in each case.

plugins/script/ScriptingSystem.cpp

@@ -416,11 +416,7 @@ void ScriptingSystem::initialiseModule(const IApplicationContext& ctx)
 		.connect(sigc::mem_fun(this, &ScriptingSystem::initialise));
 
 	// Construct the script path
-#if defined(POSIX) && defined(PKGLIBDIR)
-	_scriptPath = std::string(PKGLIBDIR) + "/scripts/";
-#else
 	_scriptPath = ctx.getRuntimeDataPath() + "scripts/";
-#endif
 
 	// When Python asks for the object, let's register our interfaces to the py::module
 	PythonModule::RegisterToPython(