Remove Unused Member from Default Impl

Bug: 194476544
Test: atest VtsHalTvTunerV1_0TargetTest && atest
VtsHalTvTunerV1_1TargetTest

Change-Id: I347ca125bdc557e36ca42b7a4f308a6151e12fe5
diff --git a/tv/tuner/1.1/default/Dvr.h b/tv/tuner/1.1/default/Dvr.h
index 7b7efef..9fabb49 100644
--- a/tv/tuner/1.1/default/Dvr.h
+++ b/tv/tuner/1.1/default/Dvr.h
@@ -151,10 +151,6 @@
     std::mutex mDvrThreadLock;
 
     const bool DEBUG_DVR = false;
-
-    // Booleans to check if recording is running.
-    // Recording is ready when both of the following are set to true.
-    bool mIsRecordStarted = false;
 };
 
 }  // namespace implementation
@@ -164,4 +160,4 @@
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_TV_TUNER_V1_1_DVR_H_
\ No newline at end of file
+#endif  // ANDROID_HARDWARE_TV_TUNER_V1_1_DVR_H_