lib: remove unnecessary bounded function following @aduh95 suggestions

Author: miguelmarcondesf

lib/assert.js

@@ -179,8 +179,16 @@ assert.AssertionError = AssertionError;
 function ok(...args) {
   innerOk(ok, args.length, ...args);
 }
-Assert.prototype.ok = function(...args) {
-  innerOk(this.ok, args.length, ...args);
+
+/**
+ * Pure assertion tests whether a value is truthy, as determined
+ * by !!value.
+ * Duplicated as the other `ok` function is supercharged and exposed as default export.
+ * @param {...any} args
+ * @returns {void}
+ */
+Assert.prototype.ok = function ok(...args) {
+  innerOk(ok, args.length, ...args);
 };
 
 /**
@@ -872,14 +880,13 @@ function strict(...args) {
   innerOk(strict, args.length, ...args);
 }
 
-const assertInstance = new Assert({ diff: 'simple', strict: false });
 ArrayPrototypeForEach([
   'ok', 'fail', 'equal', 'notEqual', 'deepEqual', 'notDeepEqual',
   'deepStrictEqual', 'notDeepStrictEqual', 'strictEqual',
   'notStrictEqual', 'partialDeepStrictEqual', 'match', 'doesNotMatch',
   'throws', 'rejects', 'doesNotThrow', 'doesNotReject', 'ifError',
 ], (name) => {
-  setOwnProperty(assert, name, Assert.prototype[name].bind(assertInstance));
+  setOwnProperty(assert, name, Assert.prototype[name]);
 });
 
 assert.strict = ObjectAssign(strict, assert, {

test/message/assert_throws_stack.out

@@ -24,7 +24,7 @@ AssertionError [ERR_ASSERTION]: Expected values to be strictly deep-equal:
   actual: Error: foo
       at assert.throws.bar (*assert_throws_stack.js:*)
       at getActual (node:assert:*)
-      at Assert.throws (node:assert:*)
+      at strict.throws (node:assert:*)
       at Object.<anonymous> (*assert_throws_stack.js:*:*)
       at *
       at *

test/parallel/test-fs-promises.js

@@ -58,7 +58,7 @@ assert.strictEqual(
       code: 'ENOENT',
       name: 'Error',
       message: /^ENOENT: no such file or directory, access/,
-      stack: /at async Assert\.rejects/
+      stack: /at async ok\.rejects/
     }
   ).then(common.mustCall());