diff --git a/app/src/main/java/acr/browser/lightning/object/SearchAdapter.java b/app/src/main/java/acr/browser/lightning/object/SearchAdapter.java
index abb2e61..77694b2 100644
--- a/app/src/main/java/acr/browser/lightning/object/SearchAdapter.java
+++ b/app/src/main/java/acr/browser/lightning/object/SearchAdapter.java
@@ -96,7 +96,7 @@ public class SearchAdapter extends BaseAdapter implements Filterable {
         delete.start();
     }
 
-    private void deleteOldCacheFiles() {
+    private static void deleteOldCacheFiles() {
         File dir = new File(BrowserApp.getAppContext().getCacheDir().toString());
         String[] fileList = dir.list(new NameFilter());
         long earliestTimeAllowed = System.currentTimeMillis() - INTERVAL_DAY;
diff --git a/app/src/main/java/acr/browser/lightning/reading/ArticleTextExtractor.java b/app/src/main/java/acr/browser/lightning/reading/ArticleTextExtractor.java
index 9e33e92..1e2eb3b 100644
--- a/app/src/main/java/acr/browser/lightning/reading/ArticleTextExtractor.java
+++ b/app/src/main/java/acr/browser/lightning/reading/ArticleTextExtractor.java
@@ -968,7 +968,7 @@ public class ArticleTextExtractor {
         return weight;
     }
 
-    private Element determineImageSource(Element el, List<ImageResult> images) {
+    private static Element determineImageSource(Element el, List<ImageResult> images) {
         int maxWeight = 0;
         Element maxNode = null;
         Elements els = el.select("img");
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index d9fcece..5afcd56 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -3,6 +3,5 @@
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="navigation_width">260dp</dimen>
     <dimen name="search_bar_height">48dp</dimen>
-    <dimen name="abc_action_button_min_width_overflow_material">48dp</dimen>
 
 </resources>