Remove unused imports in datetimepicker

uhabits-android/src/main/java/com/android/datetimepicker/date/DayPickerView.java

@@ -22,7 +22,6 @@ import java.util.Locale;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.util.AttributeSet;

uhabits-android/src/main/java/com/android/datetimepicker/date/MonthView.java

@@ -23,14 +23,13 @@ import android.graphics.Paint.*;
 import android.os.*;
 import androidx.core.view.*;
 import androidx.core.view.accessibility.*;
-import androidx.core.widget.*;
+
 import android.text.format.*;
 import android.view.*;
 import android.view.accessibility.*;
 
 import androidx.customview.widget.ExploreByTouchHelper;
 
-import com.android.*;
 import com.android.datetimepicker.*;
 import com.android.datetimepicker.date.MonthAdapter.*;
 

uhabits-android/src/main/java/com/android/datetimepicker/time/AmPmCirclesView.java

@@ -23,7 +23,6 @@ import android.graphics.Paint.*;
 import android.util.*;
 import android.view.*;
 
-import com.android.*;
 import com.android.datetimepicker.*;
 
 import org.isoron.uhabits.R;

uhabits-android/src/main/java/com/android/datetimepicker/time/RadialPickerLayout.java

@@ -28,7 +28,6 @@ import android.view.View.*;
 import android.view.accessibility.*;
 import android.widget.*;
 
-import com.android.*;
 import com.android.datetimepicker.*;
 
 import org.isoron.uhabits.R;