Android: remove duplicate ADPF orchestration from game thread path

[Copilot]

Startup/input ANRs were traced to overlapping performance-hint control paths on Android. We now keep a single hinting path (Oboe-managed) and remove redundant managed/native ADPF session reporting that was running on the game thread.

• What changed

  • Removed manual ADPF session lifecycle in OsuGameAndroid (init/update/report/dispose hooks tied to frame completion).
  • Removed ADPF interop surface from OboeAudioBridge.cs and matching native exports in oboe_bridge.cpp.
  • Kept Oboe stream performance hinting enabled as the sole mechanism for ADPF integration.

• Why this shape

  • Eliminates duplicate scheduling signals and hot-path interop churn in frame/input code.
  • Reduces contention risk while preserving low-latency audio performance hints through Oboe.

// Retained single performance-hint path in native audio stream setup.
stream_->setPerformanceHintEnabled(true);

[Copilot]

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