BLE Host - Remove extra sec check on ATT write.
BLE Host - Remove extra sec check on ATT write.

This looks like a merge mistake.

X-Original-Commit: 9a8d36e17d6e2f3f4d7ba610092f5d9143752cbf

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble