nimble/hci: Remove reduntant declaration
nimble/hci: Remove reduntant declaration

X-Original-Commit: 457fc9815b9b01bcca1aa76beb1b9bba97f2e0b4

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