Remove unused imports

Author: fornwall

app/src/main/java/com/termux/app/DialogUtils.java

@@ -3,12 +3,10 @@
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
-import android.content.res.Configuration;
 import android.text.Selection;
 import android.util.TypedValue;
 import android.view.KeyEvent;
 import android.view.ViewGroup.LayoutParams;
-import android.view.WindowManager;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TextView;

app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java

@@ -8,7 +8,6 @@
 import android.net.Uri;
 import android.provider.OpenableColumns;
 import android.util.Log;
-import android.util.MutableBoolean;
 import android.util.Patterns;
 
 import com.termux.R;