FAB-3173 remove unused docs

remove unused docs
deleted:    docs/source/API/AttributesUsage.rst
deleted:    docs/source/API/CLI.rst
deleted:    docs/source/API/ChaincodeAPI.rst
deleted:    docs/source/API/Samples/Sample_1.js
deleted:    docs/source/API/Samples/Sample_1.zip
deleted:    docs/source/SystemChaincode-noop.rst
deleted:    docs/source/protocol-spec.rst
deleted:    docs/source/protocol-spec_zh.rst
deleted:    docs/source/tech/application-ACL.rst
deleted:    docs/source/tech/attributes.rst
deleted:    docs/source/tech/best-practices.rst

Change-Id: I3092bce71a629b252509b03322a7816de64c4741
Signed-off-by: Christopher Ferris <[email protected]>

Author: christo4ferris