organize imports

src/main/java/com/owncloud/android/ui/fragment/FileDetailSharingFragment.java

@@ -31,7 +31,6 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.inputmethod.EditorInfo;
-import android.view.inputmethod.InputMethodManager;
 import android.widget.ImageView;
 import android.widget.ListAdapter;
 import android.widget.ListView;