AudioFlinger: Remove unnecessary friends

Remove obsolete TODOs, replace as needed with specific bug numbers.

Test: compiles
Bug: 288339104
Change-Id: Ied525f2f100203800f746239685e77b8e033618e
diff --git a/services/audioflinger/IAfEffect.h b/services/audioflinger/IAfEffect.h
index 395340e..ece0081 100644
--- a/services/audioflinger/IAfEffect.h
+++ b/services/audioflinger/IAfEffect.h
@@ -353,7 +353,7 @@
             const IAfPatchPanel::Patch& patch) = 0;
     virtual void onReleasePatch(audio_patch_handle_t patchHandle) = 0;
 
-    virtual void dump2(int fd, int spaces) const = 0; // TODO(b/288339104) naming?
+    virtual void dump2(int fd, int spaces) const = 0; // TODO(b/291319101) naming?
 
 private:
     // used by DeviceEffectProxy