return indexOf(element) != -1;
    }

    /**
     * Removes an element from the list.
     *
     * @param element the element
     * @return true if the element was removed, false otherwise
     */
    public boolean remove(final E element) {
        if (element == null) {
            for (Entry e = header.next; e != header; e = e.next) {
                if (e.element == null) {

### **CLI**

*   Swagger 1.2 validation is removed for kubectl. The options `--use-openapi` and `--schema-cache-dir` are also removed because they are no longer needed. ([#53232](https://github.com/kubernetes/kubernetes/pull/53232),[ @apelisse](https://github.com/apelisse))

### **Cluster Lifecycle**

# Release 2.12.0

### Breaking Changes

*   Build, Compilation and Packaging

    }

    /**
     * Removes delimiters.
     *
     * @param value
     *            String value
     * @param locale
     *            Locale
     * @return String result with delimiters removed
     */
    public static String removeDelimeter(String value, final Locale locale) {
        final String groupingSeparator = findGroupingSeparator(locale);
        if (groupingSeparator != null) {

   *
   * @param removeFrom the iterator to (potentially) remove elements from
   * @param predicate a predicate that determines whether an element should be removed
   * @return {@code true} if any elements were removed from the iterator
   * @since 2.0
   */
  @CanIgnoreReturnValue
  public static <T extends @Nullable Object> boolean removeIf(
      Iterator<T> removeFrom, Predicate<? super T> predicate) {

        /*
         * The cast is safe because the entry is present in the map. Or, if it has been removed by a
         * concurrent modification, behavior is undefined.
         */
        return uncheckedCastNullableTToT(delegate.get(key));
      }
      updateLastKnownIndex();
      /*
       * If the entry has been removed from the map, we return null, even though that might not be a

	defaultCertsDir   = &ConfigDir{path: getDefaultCertsDir()}
	defaultCertsCADir = &ConfigDir{path: getDefaultCertsCADir()}

	// Points to current configuration directory -- deprecated, to be removed in future.
	globalConfigDir = defaultConfigDir
	// Points to current certs directory set by user with --certs-dir
	globalCertsDir = defaultCertsDir
	// Points to relative path to certs directory and is <value-of-certs-dir>/CAs

tree. Otherwise, the results are undefined. It's recommended to build
Go from source and use that 'go' binary to update its source tree.

Requirements may be added, updated, and removed with 'go get'.
The vendor directory may be updated with 'go mod vendor'.
A typical sequence might be:

    cd src  # or src/cmd
    go get golang.org/x/net@master
    go mod tidy
    go mod vendor

  void putAll(Table<? extends R, ? extends C, ? extends V> table);

  /**
   * Removes the mapping, if any, associated with the given keys.
   *
   * @param rowKey row key of mapping to be removed
   * @param columnKey column key of mapping to be removed
   * @return the value previously associated with the keys, or {@code null} if no such value existed
   */
  @CanIgnoreReturnValue
  @Nullable V remove(

  - The deprecated `--etcd-quorum-read` flag has been removed. Quorum reads are now always enabled when fetching data from etcd. Remove the `--etcd-quorum-read` flag from kube-apiserver invocations before upgrading.
- kube-controller-manager
  - The deprecated `--insecure-experimental-approve-all-kubelet-csrs-for-group` flag has been removed.
- kubelet