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diff --git a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/elementAt.ts b/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/elementAt.ts
deleted file mode 100644
index 05c78ed518..0000000000
--- a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/elementAt.ts
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@@ -1,69 +0,0 @@
-import { Operator } from '../Operator';
-import { Subscriber } from '../Subscriber';
-import { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';
-import { Observable } from '../Observable';
-import { MonoTypeOperatorFunction, TeardownLogic } from '../types';
-import { filter } from './filter';
-import { throwIfEmpty } from './throwIfEmpty';
-import { defaultIfEmpty } from './defaultIfEmpty';
-import { take } from './take';
-
-/**
- * Emits the single value at the specified `index` in a sequence of emissions
- * from the source Observable.
- *
- * <span class="informal">Emits only the i-th value, then completes.</span>
- *
- * ![](elementAt.png)
- *
- * `elementAt` returns an Observable that emits the item at the specified
- * `index` in the source Observable, or a default value if that `index` is out
- * of range and the `default` argument is provided. If the `default` argument is
- * not given and the `index` is out of range, the output Observable will emit an
- * `ArgumentOutOfRangeError` error.
- *
- * ## Example
- * Emit only the third click event
- * ```javascript
- * import { fromEvent } from 'rxjs';
- * import { elementAt } from 'rxjs/operators';
- *
- * const clicks = fromEvent(document, 'click');
- * const result = clicks.pipe(elementAt(2));
- * result.subscribe(x => console.log(x));
- *
- * // Results in:
- * // click 1 = nothing
- * // click 2 = nothing
- * // click 3 = MouseEvent object logged to console
- * ```
- *
- * @see {@link first}
- * @see {@link last}
- * @see {@link skip}
- * @see {@link single}
- * @see {@link take}
- *
- * @throws {ArgumentOutOfRangeError} When using `elementAt(i)`, it delivers an
- * ArgumentOutOrRangeError to the Observer's `error` callback if `i < 0` or the
- * Observable has completed before emitting the i-th `next` notification.
- *
- * @param {number} index Is the number `i` for the i-th source emission that has
- * happened since the subscription, starting from the number `0`.
- * @param {T} [defaultValue] The default value returned for missing indices.
- * @return {Observable} An Observable that emits a single item, if it is found.
- * Otherwise, will emit the default value if given. If not, then emits an error.
- * @method elementAt
- * @owner Observable
- */
-export function elementAt<T>(index: number, defaultValue?: T): MonoTypeOperatorFunction<T> {
-  if (index < 0) { throw new ArgumentOutOfRangeError(); }
-  const hasDefaultValue = arguments.length >= 2;
-  return (source: Observable<T>) => source.pipe(
-    filter((v, i) => i === index),
-    take(1),
-    hasDefaultValue
-      ? defaultIfEmpty(defaultValue)
-      : throwIfEmpty(() => new ArgumentOutOfRangeError()),
-  );
-}