remove ttl parameter for Cache_SimpleStatic
remove ttl parameter for Cache_SimpleStatic

A cache entry with a ttl would't be static anymore.
And it's nowhere used in kwf

koala-framework/koala-framework,yacon/koala-framework,darimpulso/koala-framework,Sogl/koala-framework,Ben-Ho/koala-framework,nsams/koala-framework,darimpulso/koala-framework,yacon/koala-framework,kaufmo/koala-framework,nsams/koala-framework,koala-framework/koala-framework,kaufmo/koala-framework,nsams/koala-framework,Sogl/koala-framework,kaufmo/koala-framework,Ben-Ho/koala-framework,yacon/koala-framework