reduce imported Guava primitives surface to bare minimum necessary

Author: ktoso

SwiftKitCore/src/main/java/org/swift/swiftkit/core/primitives/Booleans.java

@@ -54,7 +54,7 @@
  * @author Kevin Bourrillion
  * @since 1.0
  */
-public final class Doubles extends DoublesMethodsForWeb {
+public final class Doubles {
   private Doubles() {}
 
   /**

SwiftKitCore/src/main/java/org/swift/swiftkit/core/primitives/Doubles.java

@@ -30,8 +30,6 @@
 
 import static org.swift.swiftkit.core.Preconditions.*;
 
-
-
 import java.io.Serializable;
 import java.util.AbstractList;
 import java.util.Arrays;
@@ -52,7 +50,7 @@
  * @author Kevin Bourrillion
  * @since 1.0
  */
-public final class Floats extends FloatsMethodsForWeb {
+public final class Floats {
   private Floats() {}
 
   /**