Turn off BackOffPolicy by default in HttpRequest

Author: rmistry

google-http-client/src/main/java/com/google/api/client/http/HttpRequest.java

@@ -147,11 +147,8 @@ static String executeAndGetValueOfSomeCustomHeader(HttpRequest request) {
   /** Whether to enable gzip compression of HTTP content ({@code false} by default). */
   private boolean enableGZipContent;
 
-  /**
-   * The {@link BackOffPolicy} to use between retry attempts or {@code null} for none
-   * ({@link ExponentialBackOffPolicy} by default).
-   */
-  private BackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
+  /** The {@link BackOffPolicy} to use between retry attempts or {@code null} for none. */
+  private BackOffPolicy backOffPolicy;
 
   /** Whether to automatically follow redirects ({@code true} by default). */
   private boolean followRedirects = true;
@@ -281,10 +278,6 @@ public BackOffPolicy getBackOffPolicy() {
   /**
    * Sets the {@link BackOffPolicy} to use between retry attempts or {@code null} for none.
    *
-   * <p>
-   * By default it is {@link ExponentialBackOffPolicy}.
-   * </p>
-   *
    * @since 1.7
    */
   public HttpRequest setBackOffPolicy(BackOffPolicy backOffPolicy) {