fix(combo): refactor clear when disabled #8200

Author: Lipata

projects/igniteui-angular/src/lib/combo/combo.component.ts

@@ -1276,13 +1276,14 @@ export class IgxComboComponent extends DisplayDensityBase implements IgxComboBas
      * @hidden @internal
      */
     public handleClearItems(event: Event): void {
-        if (!this.disabled) {
-            this.deselectAllItems(true, event);
-            if (this.collapsed) {
-                this.getEditElement().focus();
-            } else {
-                this.focusSearchInput(true);
-            }
+        if (this.disabled) {
+            return;
+        }
+        this.deselectAllItems(true, event);
+        if (this.collapsed) {
+            this.getEditElement().focus();
+        } else {
+            this.focusSearchInput(true);
         }
         event.stopPropagation();
     }