Removed leftover docs of the removed function distribution

docs/reference/functions/alphabetical.md

@@ -48,7 +48,6 @@
 - [det(x)](det.md)
 - [diag(X)](diag.md)
 - [distance([x1, y1], [x2, y2])](distance.md)
-- [distribution(name)](distribution.md)
 - [divide(x, y)](divide.md)
 - [dot(x, y)](dot.md)
 - [dotDivide(x, y)](dotDivide.md)

docs/reference/functions/categorical.md

@@ -122,7 +122,6 @@
 ## probability
 
 - [combinations(n, k)](combinations.md)
-- [distribution(name)](distribution.md)
 - [factorial(n)](factorial.md)
 - [gamma(n)](gamma.md)
 - [kldivergence(x, y)](kldivergence.md)

docs/reference/functions/distribution.md

@@ -1,41 +0,0 @@
-# Function distribution
-
-Create a distribution object with a set of random functions for given
-random distribution.
-
-
-## Syntax
-
-```js
-math.distribution(name)
-```
-
-### Parameters
-
-Parameter | Type | Description
---------- | ---- | -----------
-`name` | string | Name of a distribution. Choose from 'uniform', 'normal'.
-
-### Returns
-
-Type | Description
----- | -----------
-Object | Returns a distribution object containing functions: `random([size] [, min] [, max])`, `randomInt([min] [, max])`, `pickRandom(array)`
-
-
-## Examples
-
-```js
-var normalDist = math.distribution('normal'); // create a normal distribution
-normalDist.random(0, 10);                     // get a random value between 0 and 10
-```
-
-
-## See also
-
-[random](random.md),
-[randomInt](randomInt.md),
-[pickRandom](pickRandom.md)
-
-
-<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->