sqlite3_android.cpp: disable _TOKENIZE

Comment out the tokenize function. This code doesn't appear to be used.
A future change will further clean up this code and delete it properly.

Bug: 139186193
Test: compiles and boots
Change-Id: I0b2c37b6716162228205fc1ca8bea0f397f36baf
(cherry picked from commit c52a1735)