Clean up dependencies in `talpid-openvpn` #7423

Job	Run time
Prepare	5s
Build native (x86_64, x86_64, x86_64-linux-android)	5m 34s
Generate relay list	2m 19s
Build native (i686, x86, i686-linux-android)	5m 44s
Build native (aarch64, arm64-v8a, aarch64-linux-android)	7m 3s
Build native (armv7, armeabi-v7a, armv7-linux-androideabi)	5m 36s
Build app and run unit tests	12m 58s
Run instrumented tests (app)	3m 10s
Run instrumented tests (mockapi)	1m 2s
	43m 31s

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