Silience compiler errors from clang-r563880

frameworks/native/services/surfaceflinger/PowerAdvisor/SessionManager.h:71:17: error: private field 'mUid' is not used [-Werror,-Wunused-private-field]
   71 |     const uid_t mUid;
      |                 ^

Test: presubmit
Flag: EXEMPT, code cleanup
Change-Id: I544c912fea01c999d2a835a158441b6ed81deba0
diff --git a/services/surfaceflinger/LayerVector.h b/services/surfaceflinger/LayerVector.h
index 38dc11d..81155fd 100644
--- a/services/surfaceflinger/LayerVector.h
+++ b/services/surfaceflinger/LayerVector.h
@@ -49,7 +49,8 @@
     using Visitor = std::function<void(Layer*)>;
 
 private:
-    const StateSet mStateSet;
+    // FIXME: This is set but not used anywhere.
+    [[maybe_unused]] const StateSet mStateSet;
 };
 }
 
diff --git a/services/surfaceflinger/PowerAdvisor/SessionManager.h b/services/surfaceflinger/PowerAdvisor/SessionManager.h
index 93a80b5..afa52eb 100644
--- a/services/surfaceflinger/PowerAdvisor/SessionManager.h
+++ b/services/surfaceflinger/PowerAdvisor/SessionManager.h
@@ -68,7 +68,8 @@
     bool isLayerRelevant(int32_t layerId);
 
     // The UID of whoever created our ISessionManager connection
-    const uid_t mUid;
+    // FIXME: This is set but is not used anywhere.
+    [[maybe_unused]] const uid_t mUid;
 
     // State owned by the main thread
 
@@ -99,4 +100,4 @@
 };
 
 } // namespace adpf
-} // namespace android
\ No newline at end of file
+} // namespace android