Fix callback test to only verify registration

Bug: 270489278
Test: atest VtsHalThermalTargetTest
Change-Id: I1e5af6e9092d3ab32b1d49382a2849fdab228bef
diff --git a/thermal/aidl/vts/VtsHalThermalTargetTest.cpp b/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
index 05cc8e0..835fbfa 100644
--- a/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
+++ b/thermal/aidl/vts/VtsHalThermalTargetTest.cpp
@@ -134,7 +134,6 @@
     // Expect to succeed with different callback
     status = mThermal->registerThermalChangedCallback(localThermalCallback);
     ASSERT_TRUE(status.isOk()) << status.getMessage();
-    ASSERT_TRUE(localThermalCallback->waitForCallback(200ms));
     // Remove the local callback
     status = mThermal->unregisterThermalChangedCallback(localThermalCallback);
     ASSERT_TRUE(status.isOk()) << status.getMessage();
@@ -158,7 +157,6 @@
     status = mThermal->registerThermalChangedCallbackWithType(localThermalCallback,
                                                               TemperatureType::SKIN);
     ASSERT_TRUE(status.isOk()) << status.getMessage();
-    ASSERT_TRUE(localThermalCallback->waitForCallback(200ms));
     // Remove the local callback
     status = mThermal->unregisterThermalChangedCallback(localThermalCallback);
     ASSERT_TRUE(status.isOk()) << status.getMessage();