DO NOT MERGE - Revert "Hide IWLAN system API"

This reverts commit ea440a765e2774320910073e5350bdccd39afb6c, reversing
changes made to 0b90c524cb8288f3b8d8111b5724c02630c5b4c6.

Test: Build
Bug: 73659459
Change-Id: Id5a5147c6478cf10661aebe52b445bd16195885e
10 files changed