Remove BLE App entry from mBleApps list when App died

When a registered BLE App unexpectedly dies, its entry in mBleApps
list needs to be cleanup/removed.

Test: Manual test by repeatedly killing the gms core process.
Bug: 74076974
Change-Id: I2dc86b782dd6b07017a360a0b709504f0a375969
(cherry picked from commit 73a16514)