remove: remove imuldw from namespace

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

BREAKING CHANGE: remove `imuldw`

To migrate, users should access the same symbol via the
`@stdlib/number/int32/base` namespace.

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
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  - task: lint_javascript_src
    status: passed
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---

Author: gururaj1512

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

@@ -29,7 +29,6 @@ import cneg = require( '@stdlib/math/base/ops/cneg' );
 import cnegf = require( '@stdlib/math/base/ops/cnegf' );
 import csub = require( '@stdlib/math/base/ops/csub' );
 import csubf = require( '@stdlib/math/base/ops/csubf' );
-import imuldw = require( '@stdlib/math/base/ops/imuldw' );
 import umuldw = require( '@stdlib/math/base/ops/umuldw' );
 import divf = require( '@stdlib/number/float32/base/div' );
 import div = require( '@stdlib/number/float64/base/div' );
@@ -412,23 +411,6 @@ interface Namespace {
 	*/
 	csubf: typeof csubf;
 
-	/**
-	* Performs multiplication of two signed 32-bit integers and returns an array of two signed 32-bit integers which represents the signed 64-bit integer product.
-	*
-	* ## Notes
-	*
-	* -   When computing the product of 32-bit integer values in double-precision floating-point format (the default JavaScript numeric data type), computing the double word product is necessary in order to avoid exceeding the maximum safe double-precision floating-point integer value.
-	*
-	* @param a - integer
-	* @param b - integer
-	* @returns output array
-	*
-	* @example
-	* var v = ns.imuldw( 0xAAAAAAAA, 0x55555555 );
-	* // returns [ -477218589, 1908874354 ]
-	*/
-	imuldw: typeof imuldw;
-
 	/**
 	* 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

@@ -117,15 +117,6 @@ setReadOnly( ns, 'csub', require( '@stdlib/math/base/ops/csub' ) );
 */
 setReadOnly( ns, 'csubf', require( '@stdlib/math/base/ops/csubf' ) );
 
-/**
-* @name imuldw
-* @memberof ns
-* @readonly
-* @type {Function}
-* @see {@link module:@stdlib/math/base/ops/imuldw}
-*/
-setReadOnly( ns, 'imuldw', require( '@stdlib/math/base/ops/imuldw' ) );
-
 /**
 * @name umuldw
 * @memberof ns