Remove obsolete ::rebase() operation.

Use ::normalize() instead.

README.md

@@ -455,7 +455,6 @@ the methods always return the same values for the same inputs.
 | `pluck`       | new Collection object | [Pluck.php](./src/Operation/Pluck.php)
 | `prepend`     | new Collection object | [Prepend.php](./src/Operation/Prepend.php)
 | `product`     | new Collection object | [Product.php](./src/Operation/Product.php)
-| `rebase`      | new Collection object | [Collection.php](./src/Operation/Collection.php)
 | `reduce`      | mixed                 | [Reduce.php](./src/Transformation/Reduce.php)
 | `reduction`   | new Collection object | [Reduction.php](./src/Operation/Reduction.php)
 | `reverse`     | new Collection object | [Reverse.php](./src/Operation/Reverse.php)

docs/pages/api.rst

@@ -91,9 +91,6 @@ prepend
 product
 -------
 
-rebase
-------
-
 reduction
 ---------
 

spec/loophp/collection/CollectionSpec.php

@@ -923,17 +923,6 @@ public function it_can_prepend(): void
             ->shouldIterateAs(['A', 'B', 'C', 'D', 'E', 'F']);
     }
 
-    public function it_can_rebase(): void
-    {
-        $this
-            ->beConstructedThrough('with', [range('A', 'C')]);
-
-        $this
-            ->rebase()
-            ->all()
-            ->shouldBeEqualTo($this->all());
-    }
-
     public function it_can_reduce(): void
     {
         $this

src/Collection.php

@@ -33,7 +33,6 @@
 use loophp\collection\Operation\Prepend;
 use loophp\collection\Operation\Product;
 use loophp\collection\Operation\Range;
-use loophp\collection\Operation\Rebase;
 use loophp\collection\Operation\Reduction;
 use loophp\collection\Operation\Reverse;
 use loophp\collection\Operation\RSample;
@@ -410,16 +409,6 @@ public static function range(int $start = 0, $end = INF, $step = 1): CollectionI
         return (new self())->run(new Range($start, $end, $step));
     }
 
-    /**
-     * {@inheritdoc}
-     *
-     * @return \loophp\collection\Contract\Collection
-     */
-    public function rebase(): BaseInterface
-    {
-        return $this->run(new Rebase());
-    }
-
     /**
      * {@inheritdoc}
      */

src/Contract/Collection.php

@@ -43,7 +43,6 @@ interface Collection extends
     Pluckable,
     Prependable,
     Productable,
-    Rebaseable,
     Reduceable,
     Reductionable,
     Reverseable,