Revert "Some work on Opus map sounds (not working yet)"

This reverts commit 26260181bd4406d77a17c5961b2b5f517615e529.
Revert "Add opusfile"

This reverts commit 827699263c481662bcc986cea0eca859d50fdb99.
Revert "Add Opus"

This reverts commit a7dafa40c7d234becb3901e40cf56ec04fa4b213.
Revert "Add OGG"

This reverts commit 28d276cd7e977e6ce88e901a8ff7bd9a2196d1a4.