Revert "add exportable to declarations contains exported flags"

This reverts commit 05fd2610.

Reason for revert: Potential culprit for b/333003287- verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: I99c2f4a0975518c0593d073611466ad17424e222