Remove NonNullElementWrapperList overrides not available yet in Android

gson/src/main/java/com/google/gson/internal/NonNullElementWrapperList.java

@@ -19,11 +19,9 @@
 import java.util.AbstractList;
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.Comparator;
 import java.util.List;
 import java.util.Objects;
 import java.util.RandomAccess;
-import java.util.Spliterator;
 
 /**
  * {@link List} which wraps another {@code List} but prevents insertion of {@code null} elements.
@@ -109,16 +107,6 @@ public int lastIndexOf(Object o) {
     return delegate.lastIndexOf(o);
   }
 
-  @Override
-  public Spliterator<E> spliterator() {
-    return delegate.spliterator();
-  }
-
-  @Override
-  public void sort(Comparator<? super E> c) {
-    delegate.sort(c);
-  }
-
   @Override
   public Object[] toArray() {
     return delegate.toArray();
@@ -138,4 +126,7 @@ public boolean equals(Object o) {
   public int hashCode() {
     return delegate.hashCode();
   }
+
+  // Maybe also delegate List#sort and List#spliterator in the future, but that
+  // requires Android API level 24
 }

gson/src/main/java/com/google/gson/internal/reflect/ReflectionHelper.java

@@ -128,8 +128,8 @@ public static String constructorToString(Constructor<?> constructor) {
     return stringBuilder.toString();
   }
 
-  // Ideally parameter type would be java.lang.reflect.Executable, but that was added in Android API
-  // level 26
+  // Ideally parameter type would be java.lang.reflect.Executable, but that was added
+  // in Android API level 26
   private static void appendExecutableParameters(
       AccessibleObject executable, StringBuilder stringBuilder) {
     stringBuilder.append('(');