remove: remove umul from namespace

This commit removes the `umul` symbol from the `@stdlib/math/base/ops`
namespace due to a package migration.

BREAKING CHANGE: remove `umul`

To migrate, users should access the same symbol via the
`@stdlib/number/uint32/base` namespace.

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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---

Author: gururaj1512

lib/node_modules/@stdlib/math/base/ops/docs/types/index.d.ts

@@ -32,7 +32,6 @@ import csubf = require( '@stdlib/math/base/ops/csubf' );
 import imul = require( '@stdlib/math/base/ops/imul' );
 import imuldw = require( '@stdlib/math/base/ops/imuldw' );
 import mulf = require( '@stdlib/number/float32/base/mul' );
-import umul = require( '@stdlib/math/base/ops/umul' );
 import umuldw = require( '@stdlib/math/base/ops/umuldw' );
 import addf = require( '@stdlib/number/float32/base/add' );
 import divf = require( '@stdlib/number/float32/base/div' );
@@ -475,19 +474,6 @@ interface Namespace {
 	*/
 	mulf: typeof mulf;
 
-	/**
-	* Performs C-like multiplication of two unsigned 32-bit integers.
-	*
-	* @param a - unsigned 32-bit integer
-	* @param b - Unsigned 32-bit integer
-	* @returns product
-	*
-	* @example
-	* var v = ns.umul( 10>>>0, 4>>>0 );
-	* // returns 40
-	*/
-	umul: typeof umul;
-
 	/**
 	* Performs multiplication of two unsigned 32-bit integers and returns an array of two unsigned 32-bit integers which represents the unsigned 64-bit integer product.
 	*

lib/node_modules/@stdlib/math/base/ops/lib/index.js

@@ -135,15 +135,6 @@ setReadOnly( ns, 'imul', require( '@stdlib/math/base/ops/imul' ) );
 */
 setReadOnly( ns, 'imuldw', require( '@stdlib/math/base/ops/imuldw' ) );
 
-/**
-* @name umul
-* @memberof ns
-* @readonly
-* @type {Function}
-* @see {@link module:@stdlib/math/base/ops/umul}
-*/
-setReadOnly( ns, 'umul', require( '@stdlib/math/base/ops/umul' ) );
-
 /**
 * @name umuldw
 * @memberof ns