g: remove obsolete dcrypto_init definition
g: remove obsolete dcrypto_init definition

No boards are referencing old dcrypto_init at this point; all have
moved to dcrypto_init_and_lock

BUG=none
BRANCH=cr50
TEST=buildall

Change-Id: I04c96608c5459470d87e67046912ca7c02e6332a
Reviewed-on: https://chromium-review.googlesource.com/540779
Commit-Ready: Marius Schilder <d423f2980be0298efdef7df239b147d21d472f26@chromium.org>
Commit-Ready: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>
Tested-by: Marius Schilder <d423f2980be0298efdef7df239b147d21d472f26@chromium.org>
Reviewed-by: Marius Schilder <d423f2980be0298efdef7df239b147d21d472f26@chromium.org>
Reviewed-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec