Removed brew instructions from the README as the depedencies are now bundled pre-built.
Removed brew instructions from the README as the depedencies are now bundled pre-built.

Safari-FIDO-U2F/Safari-FIDO-U2F,Safari-FIDO-U2F/Safari-FIDO-U2F,Safari-FIDO-U2F/Safari-FIDO-U2F,Safari-FIDO-U2F/Safari-FIDO-U2F