docs: updated the comments in which removed the redundant phrase and added the comma to linked two sentence (#27400)

Author: alkavats1

src/material/menu/menu-item.ts

@@ -34,7 +34,7 @@ import {MatMenuPanel, MAT_MENU_PANEL} from './menu-panel';
 const _MatMenuItemBase = mixinDisableRipple(mixinDisabled(class {}));
 
 /**
- * Single item inside of a `mat-menu`. Provides the menu item styling and accessibility treatment.
+ * Single item inside a `mat-menu`. Provides the menu item styling and accessibility treatment.
  */
 @Component({
   selector: '[mat-menu-item]',
@@ -118,7 +118,7 @@ export class MatMenuItem
 
   ngAfterViewInit() {
     if (this._focusMonitor) {
-      // Start monitoring the element so it gets the appropriate focused classes. We want
+      // Start monitoring the element, so it gets the appropriate focused classes. We want
       // to show the focus style for menu items only when the focus was not caused by a
       // mouse or touch interaction.
       this._focusMonitor.monitor(this._elementRef, false);
@@ -166,7 +166,7 @@ export class MatMenuItem
     const clone = this._elementRef.nativeElement.cloneNode(true) as HTMLElement;
     const icons = clone.querySelectorAll('mat-icon, .material-icons');
 
-    // Strip away icons so they don't show up in the text.
+    // Strip away icons, so they don't show up in the text.
     for (let i = 0; i < icons.length; i++) {
       icons[i].remove();
     }

src/material/schematics/ng-generate/mdc-migration/rules/tree-traversal.ts

@@ -68,7 +68,7 @@ export function parseTemplate(template: string, templateUrl: string = ''): Parse
 }
 
 /**
- * Replaces the start tag of the given Element node inside of the html document with a new tag name.
+ * Replaces the start tag of the given Element node inside the html document with a new tag name.
  *
  * @param html The full html document.
  * @param node The Element node to be updated.
@@ -80,7 +80,7 @@ export function replaceStartTag(html: string, node: TmplAstElement, tag: string)
 }
 
 /**
- * Replaces the end tag of the given Element node inside of the html document with a new tag name.
+ * Replaces the end tag of the given Element node inside the html document with a new tag name.
  *
  * @param html The full html document.
  * @param node The Element node to be updated.