chore(tests): drop self-referential and restating comments in display tests

Author: jdalton

packages/cli/test/unit/utils/error/display.test.mts

@@ -151,9 +151,6 @@ describe('error/display', () => {
     })
 
     it('preserves Error.cause chain in message without debug mode', () => {
-      // Regression: formatErrorForDisplay used to only surface causes
-      // under showStack/verbose, so non-debug users lost the most useful
-      // diagnostic context. See PR #1238.
       const inner = new Error('root DNS failure')
       const middle = new Error('network call failed', { cause: inner })
       const outer = new Error('API request failed', { cause: middle })
@@ -166,19 +163,15 @@ describe('error/display', () => {
     })
 
     it('stops walking causes at depth 5 to avoid runaway chains', () => {
-      // Build inside-out so the outer Error sits at index 10 and chains
-      // down through level-9, level-8, ..., level-0.
       let e: Error | undefined
       for (let i = 0; i <= 10; i++) {
         e = new Error(`level-${i}`, e ? { cause: e } : undefined)
       }
 
       const result = formatErrorForDisplay(e!)
 
-      // Top message + 5 causes should appear.
       expect(result.message).toContain('level-10')
       expect(result.message).toContain('level-5')
-      // Anything beyond depth 5 should have been truncated.
       expect(result.message).not.toContain('level-4')
     })