Revert "added assetsCache on external server also for content images"
Revert "added assetsCache on external server also for content images"

This reverts commit 839822f7165c9bc8e59e558e56f6b726029180f9.

This was an incomplete implementation as the cache wasn't cleared correctly.

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