Revert "Add methods to detect whether array is gpu"
Revert "Add methods to detect whether array is gpu"

This reverts commit 1fddfc622207a9a1e6558effdb48d1db520e799e.

explosion/thinc,spacy-io/thinc,spacy-io/thinc,explosion/thinc,explosion/thinc,spacy-io/thinc,explosion/thinc