Revert "ANDROID: input: keychord: log when keychord triggered"

This reverts commit 4017c45e.

Remove keychord driver, replaced in user space by
https://android-review.googlesource.com/c/677629

.

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Cc: JP Abgrall <jpa@google.com>
Cc: Amit Pundir <amit.pundir@linaro.org>
Bug: 64114943
Bug: 129556081
Change-Id: I6db729ae86ea9d01e2f2266c5572a4fcafcbb325