Revert "fixed primefaces#7841 forceSelection not clearing invalid sin…

…gle numbers/strings"

This reverts commit e80663b.

src/app/components/autocomplete/autocomplete.ts

@@ -635,18 +635,6 @@ export class AutoComplete implements AfterViewChecked,AfterContentInit,DoCheck,O
                 this.onModelChange(this.value);
             }
         }
-        else if (this.forceSelection && !this.suggestions) {
-            if (this.multiple) {
-                this.multiInputEL.nativeElement.value = '';
-            }
-            else {
-                this.value = null;
-                this.inputEL.nativeElement.value = '';
-            }
-
-            this.onClear.emit(event);
-            this.onModelChange(this.value);
-        }
     }
 
     onInputPaste(event: ClipboardEvent) {