gn2bp: Remove -Wno-deprecated-non-prototype from C++ defaults am: e58e4d59af am: f15fc7071d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2402003

Change-Id: I7c533deab4a734cf69987c96715f0805fc0ff2da
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>