diff --git a/app/build.gradle b/app/build.gradle
index 738f96d0f..36e2d25c6 100755
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -30,9 +30,6 @@ android {
         }
     }
 
-    lintOptions {
-        checkReleaseBuilds false
-    }
     ndkVersion '21.3.6528147'
 }
 
diff --git a/app/src/main/java/org/dslul/openboard/inputmethod/latin/about/AboutPreferences.java b/app/src/main/java/org/dslul/openboard/inputmethod/latin/about/AboutPreferences.java
deleted file mode 100644
index fed75fc1f..000000000
--- a/app/src/main/java/org/dslul/openboard/inputmethod/latin/about/AboutPreferences.java
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.dslul.openboard.inputmethod.latin.about;
-
-import android.app.Fragment;
-
-/**
- * Dummy class of AboutPreferences. Never use this.
- */
-public final class AboutPreferences extends Fragment {
-    private AboutPreferences() {
-        // Prevents this from being instantiated
-    }
-}
diff --git a/app/src/main/java/org/dslul/openboard/inputmethod/latin/utils/FragmentUtils.java b/app/src/main/java/org/dslul/openboard/inputmethod/latin/utils/FragmentUtils.java
index bb96abaed..f0d62f3bc 100644
--- a/app/src/main/java/org/dslul/openboard/inputmethod/latin/utils/FragmentUtils.java
+++ b/app/src/main/java/org/dslul/openboard/inputmethod/latin/utils/FragmentUtils.java
@@ -16,7 +16,6 @@
 
 package org.dslul.openboard.inputmethod.latin.utils;
 
-import org.dslul.openboard.inputmethod.latin.about.AboutPreferences;
 import org.dslul.openboard.inputmethod.latin.settings.AdvancedSettingsFragment;
 import org.dslul.openboard.inputmethod.latin.settings.AppearanceSettingsFragment;
 import org.dslul.openboard.inputmethod.latin.settings.CorrectionSettingsFragment;
@@ -37,7 +36,6 @@ import java.util.HashSet;
 public class FragmentUtils {
     private static final HashSet<String> sLatinImeFragments = new HashSet<>();
     static {
-        sLatinImeFragments.add(AboutPreferences.class.getName());
         sLatinImeFragments.add(PreferencesSettingsFragment.class.getName());
         sLatinImeFragments.add(AppearanceSettingsFragment.class.getName());
         sLatinImeFragments.add(ThemeSettingsFragment.class.getName());