fix(language-selector): remove internal decorator (carbon-design-syst…

…em#11069)

### Related Ticket(s)

Closes carbon-design-system#10885 

### Description

Removes the `@internal` decorator from `language-selector` which was preventing output to the `.d.ts`. Also removes unneeded code from `bx-input`.

### Changelog

**New**

- {{new thing}}

**Changed**

- {{changed thing}}

**Removed**

- `@internal` decorator
- unused getter/setter from `bx-input`

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packages/carbon-web-components/src/components/input/input.ts

@@ -49,6 +49,12 @@ export default class BXInput extends ValidityMixin(FormMixin(LitElement)) {
    */
   protected _value = '';
 
+  /**
+   * Set initial value of input
+   */
+  @property({ reflect: true })
+  value = '';
+
   /**
    * Handles `oninput` event on the `<input>`.
    *
@@ -198,32 +204,6 @@ export default class BXInput extends ValidityMixin(FormMixin(LitElement)) {
   @property({ attribute: 'validity-message' })
   validityMessage = '';
 
-  /**
-   * The value of the input.
-   */
-  @property({ reflect: true })
-  get value() {
-    // FIXME: Figure out how to deal with TS2611
-    // once we have the input we can directly query for the value
-    if (this._input) {
-      return this._input.value;
-    }
-    // but before then _value will work fine
-    return this._value;
-  }
-
-  set value(value) {
-    const oldValue = this._value;
-    this._value = value;
-    // make sure that lit-element updates the right properties
-    this.requestUpdate('value', oldValue);
-    // we set the value directly on the input (when available)
-    // so that programatic manipulation updates the UI correctly
-    if (this._input) {
-      this._input.value = value;
-    }
-  }
-
   createRenderRoot() {
     return this.attachShadow({
       mode: 'open',