Revert "Use compat framework to gate session actions"

Revert "Update media flag descriptions"

Revert submission 17161599-b220034304-media-compat

Reason for revert: This seems to cause the break in b/224895002
BUG: 224895002
Reverted Changes:
Ifeecb4e13:Update media flag descriptions
Ie032fe9ec:Use compat framework to gate session actions

Change-Id: I8b309a69282f41b4a45bd82bd3dcc9f85751da7e