fix(material/dialog): dialog name not read by sr on mac chrome & firefox

Cleans up fix for Angular Component Dialog component's fix to update
the dialog aria-label if the user's OS is a mac since mac using a
chrome or firefox browser the screenreader does NOT read the dialog
name if the value is portrayed by aria-labelledby or aria-describedby.
Cleaned up console logs and unused attributes.

Fixes b/274674581

Author: essjay05

src/material/dialog/dialog-container.ts

@@ -145,10 +145,6 @@ export class MatDialogContainer
     } else if (!os && /linux/.test(userAgent)) {
       os = 'linux';
     }
-    console.log('userAgent:');
-    console.log(userAgent);
-    console.log(`os:`);
-    console.log(os);
     // const platform = window.navigator.userAgent.platform
     return os;
   };
@@ -159,8 +155,6 @@ export class MatDialogContainer
     // or ariaDescribedBy values are applied to the dialog config
     const ariaLabelledByRefId = this._ariaLabelledByQueue[0];
     const ariaDescribedByRefId = this._ariaDescribedByQueue[0];
-    console.log(`ariaLabelledByRefId: ${ariaLabelledByRefId}`);
-    console.log(`ariaDescribedByRefId: ${ariaDescribedByRefId}`);
     // Get Element to get name/title from if ariaLabelledBy or ariaDescribedBy
     const dialogNameElement =
       document.getElementById(ariaLabelledByRefId) || document.getElementById(ariaDescribedByRefId);
@@ -171,8 +165,6 @@ export class MatDialogContainer
         : // : Otherwise prioritize use of ariaLabel
           this._config.ariaLabel || dialogNameElement?.innerText || dialogNameElement?.ariaLabel;
     this._config.ariaLabel = dialogNameInnerText || 'Dialog Modal';
-    console.log(`getDialogName this.config.ariaLabel: `);
-    console.log(this._config.ariaLabel);
     return this._config.ariaLabel;
   };
 

src/material/dialog/dialog-content-directives.ts

@@ -34,8 +34,6 @@ let dialogElementUid = 0;
   host: {
     '(click)': '_onButtonClick($event)',
     '[attr.aria-label]': 'ariaLabel || null',
-    '[attr.aria-labelledby]': 'ariaLabelledBy || null',
-    '[attr.aria-describedby]': 'ariaDescribedBy || null',
     '[attr.type]': 'type',
   },
 })