fix(bench): replace empty arrow functions with expression-bodied no-ops

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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: DivitJain26

lib/node_modules/@stdlib/bench/harness/docs/types/test.ts

@@ -23,7 +23,7 @@ import bench = require( './index' );
 
 // FUNCTIONS //
 
-const benchmark = () => {};
+const benchmark = (): void => undefined;
 
 
 // TESTS //
@@ -114,8 +114,8 @@ const benchmark = () => {};
 // Attached to the main export is a `createHarness` method which returns a Harness..
 {
 	bench.createHarness(); // $ExpectType Harness
-	bench.createHarness( (): void => {} ); // $ExpectType Harness
-	bench.createHarness( { 'autoclose': true }, (): void => {} ); // $ExpectType Harness
+	bench.createHarness( (): void => undefined ); // $ExpectType Harness
+	bench.createHarness( { 'autoclose': true }, (): void => undefined ); // $ExpectType Harness
 }
 
 // The compiler throws an error if the `createHarness` method is provided an `autoclose` option which is not a boolean...
@@ -127,12 +127,12 @@ const benchmark = () => {};
 	bench.createHarness( { 'autoclose': {} } ); // $ExpectError
 	bench.createHarness( { 'autoclose': ( x: number ): number => x } ); // $ExpectError
 
-	bench.createHarness( { 'autoclose': 123 }, (): void => {} ); // $ExpectError
-	bench.createHarness( { 'autoclose': 'abc' }, (): void => {} ); // $ExpectError
-	bench.createHarness( { 'autoclose': null }, (): void => {} ); // $ExpectError
-	bench.createHarness( { 'autoclose': [] }, (): void => {} ); // $ExpectError
-	bench.createHarness( { 'autoclose': {} }, (): void => {} ); // $ExpectError
-	bench.createHarness( { 'autoclose': ( x: number ): number => x }, (): void => {} ); // $ExpectError
+	bench.createHarness( { 'autoclose': 123 }, (): void => undefined ); // $ExpectError
+	bench.createHarness( { 'autoclose': 'abc' }, (): void => undefined ); // $ExpectError
+	bench.createHarness( { 'autoclose': null }, (): void => undefined ); // $ExpectError
+	bench.createHarness( { 'autoclose': [] }, (): void => undefined ); // $ExpectError
+	bench.createHarness( { 'autoclose': {} }, (): void => undefined ); // $ExpectError
+	bench.createHarness( { 'autoclose': ( x: number ): number => x }, (): void => undefined ); // $ExpectError
 }
 
 // The compiler throws an error if the `createHarness` method is provided a `callback` argument which is not a function...
@@ -148,7 +148,7 @@ const benchmark = () => {};
 
 // The compiler throws an error if the `createHarness` method is provided an incorrect number of arguments...
 {
-	bench.createHarness( {}, (): void => {}, {} ); // $ExpectError
+	bench.createHarness( {}, (): void => undefined, {} ); // $ExpectError
 }
 
 // Attached to the main export is a `createStream` method which returns a stream..