[DO NOT MERGE] Fix sensor not found callback function unused

Bug: 169616238
Test: Compile with and without CHRE_LOG_ONLY_NO_SENSOR flag

Change-Id: I48a2f3a151253ade5b16c84ca395d0b8b1e695b7
diff --git a/platform/slpi/see/platform_sensor_manager.cc b/platform/slpi/see/platform_sensor_manager.cc
index 4336bd3..478f0ee 100644
--- a/platform/slpi/see/platform_sensor_manager.cc
+++ b/platform/slpi/see/platform_sensor_manager.cc
@@ -142,6 +142,7 @@
 
 #endif  // CHRE_SLPI_UIMG_ENABLED
 
+#ifndef CHRE_LOG_ONLY_NO_SENSOR
 /**
  * Callback function which will run after a delay if a required sensor is not
  * found.
@@ -150,6 +151,7 @@
                                       void * /* eventData */) {
   FATAL_ERROR("Missing required sensor(s)");
 }
+#endif
 
 void handleMissingSensor() {
   // Try rebooting if a sensor is missing, which might help recover from a