VT: do not remove a rx session even if ECONNREFUSED occurred. am: a261106c am: fbdfa069 am: de79d269

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/15683957

Change-Id: I9a2f4bdd7a25ed1c4027d8c90d24cded0f39f2b1