Revert "Workaround of Slice not pinned bug when using SliceCallback"

This reverts commit 73afb042dc3e6359f0d3350bc25038c5f26d0826.

Reason for revert: Publish the fix in Slice lib and revert the workaround.

Bug: 157387583
Change-Id: Icb150b4f69bffe8af4c3fcb26501020c8fe8432b
1 file changed