chore(assertions): partially revert #18948 (#18998)

Some tests are failing in v2 due to an oversight that had tests depend on user-supplied context. This PR reverts a change made in #18948 that redacted the stack trace for `findXxx()` APIs. Since this is something the user can configure through context values, it is unnecessary. As such, a few tests are now irrelevant.

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: kaizencc

packages/@aws-cdk/assertions/lib/private/messages.ts

@@ -10,7 +10,6 @@ export function findMessage(messages: Messages, constructPath: string, props: an
     return {};
   }
 
-  Object.values(result.matches).forEach((m) => handleTrace(m));
   return result.matches;
 }
 

packages/@aws-cdk/assertions/test/annotations.test.ts

@@ -7,13 +7,12 @@ describe('Messages', () => {
   let annotations: _Annotations;
   beforeAll(() => {
     stack = new Stack();
-    const foo = new CfnResource(stack, 'Foo', {
+    new CfnResource(stack, 'Foo', {
       type: 'Foo::Bar',
       properties: {
         Fred: 'Thud',
       },
     });
-    foo.node.setContext('disable-stack-trace', false);
 
     new CfnResource(stack, 'Bar', {
       type: 'Foo::Bar',
@@ -61,11 +60,6 @@ describe('Messages', () => {
       const result = annotations.findError('*', 'no message looks like this');
       expect(result.length).toEqual(0);
     });
-
-    test('trace is redacted', () => {
-      const result = annotations.findError('/Default/Foo', Match.anyValue());
-      expect(result[0].entry.trace).toEqual('redacted');
-    });
   });
 
   describe('hasWarning', () => {
@@ -165,15 +159,7 @@ describe('Multiple Messages on the Resource', () => {
     const result2 = annotations.findError('/Default/Bar', Match.stringLikeRegexp('error:.*'));
     expect(result2.length).toEqual(2);
     const result3 = annotations.findWarning('/Default/Bar', 'warning: Foo::Bar is deprecated');
-    expect(result3).toEqual([{
-      level: 'warning',
-      entry: {
-        type: 'aws:cdk:warning',
-        data: 'warning: Foo::Bar is deprecated',
-        trace: 'redacted',
-      },
-      id: '/Default/Bar',
-    }]);
+    expect(result3[0].entry.data).toEqual('warning: Foo::Bar is deprecated');
   });
 });
 class MyAspect implements IAspect {