Remove unused method.

app/src/main/java/org/schabi/newpipe/util/Localization.java

@@ -347,19 +347,4 @@ public final class Localization {
     private static double round(final double value, final int places) {
         return new BigDecimal(value).setScale(places, RoundingMode.HALF_UP).doubleValue();
     }
-
-    /**
-     * Workaround to match normalized captions like english to English or deutsch to Deutsch.
-     * @param list the list to search into
-     * @param toFind the string to look for
-     * @return whether the string was found or not
-     */
-    public static boolean containsCaseInsensitive(final List<String> list, final String toFind) {
-        for (final String i : list) {
-            if (i.equalsIgnoreCase(toFind)) {
-                return true;
-            }
-        }
-        return false;
-    }
 }