Revert "Prevent exfiltration of system files via avatar picker."

This reverts commit 1325574d3a72fe2f8dba234ef04045565ab1aacb.

Reason for revert: regression if multiple crop system crop handlers are present

Test: atest AvatarPhotoControllerTest
Change-Id: I4dac3ac8d27d2b6d664614dcfa9488d2dad7ee7d
2 files changed