Revert "Prepare tokenizer option"

This reverts commit 4648528faa.

app/src/main/java/eu/faircode/email/Fts4DbHelper.java

@@ -22,15 +22,11 @@ package eu.faircode.email;
 import android.annotation.SuppressLint;
 import android.content.ContentValues;
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteException;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.text.TextUtils;
 
-import androidx.preference.PreferenceManager;
-
 import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -69,13 +65,6 @@ public class Fts4DbHelper extends SQLiteOpenHelper {
     @Override
     public void onCreate(SQLiteDatabase db) {
         Log.i("FTS create");
-
-        // https://www.sqlite.org/fts3.html#tokenizer
-        // https://unicode.org/reports/tr29/
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        boolean unicode61 = prefs.getBoolean("unicode61", BuildConfig.DEBUG);
-        String tokenizer = (unicode61 ? "tokenize=unicode61 \"remove_diacritics=0\"" : null);
-
         db.execSQL("CREATE VIRTUAL TABLE `message`" +
                 " USING fts4" +
                 " (`account`" +
@@ -88,8 +77,9 @@ public class Fts4DbHelper extends SQLiteOpenHelper {
                 ", `notes`" +
                 ", notindexed=`account`" +
                 ", notindexed=`folder`" +
-                ", notindexed=`time`" +
-                (tokenizer == null ? "" : ", " + tokenizer) + ")");
+                ", notindexed=`time`)");
+        // https://www.sqlite.org/fts3.html#tokenizer
+        // https://unicode.org/reports/tr29/
 
         // https://www.sqlite.org/fts3.html#fts4aux
         db.execSQL("CREATE VIRTUAL TABLE message_terms USING fts4aux('message');");