Clean up dependencies in `talpid-openvpn` #7422

Job	Run time
Prepare	6s
Build native (x86_64, x86_64, x86_64-linux-android)	6m 48s
Build native (i686, x86, i686-linux-android)	7m 24s
Generate relay list	2m 16s
Build native (aarch64, arm64-v8a, aarch64-linux-android)	6m 26s
Build native (armv7, armeabi-v7a, armv7-linux-androideabi)	5m 47s
Build app and run unit tests	17m 36s
Run instrumented tests (app)	3m 10s
Run instrumented tests (mockapi)	58s
	50m 31s

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