Remove (TARGET|HOST)_BUILD_TYPE path modifications

They don't really affect anything general in android except for the
output path. Debug builds have been broken due to Soong not respecting
*_BUILD_TYPE, and with ninja, we'll properly rebuild if you switch
between release and debug flags. So just remove the path difference.

Bug: 65453318
Test: TARGET_BUILD_TYPE=debug m
Test: code search to find all the users
Change-Id: I5c6a322e0187d96cdaeef891778508c698f841e0