chore: remove duplicate @Input's leftover from mat- transition (#7484)

src/lib/chips/chip-input.ts

@@ -63,17 +63,6 @@ export class MatChipInput {
   @Output('matChipInputTokenEnd')
   chipEnd = new EventEmitter<MatChipInputEvent>();
 
-  @Input('matChipInputFor')
-  set matChipList(value: MatChipList) { this.chipList = value; }
-
-  @Input('matChipInputAddOnBlur')
-  get matAddOnBlur() { return this._addOnBlur; }
-  set matAddOnBlur(value) { this.addOnBlur = value; }
-
-  @Input('matChipInputSeparatorKeyCodes')
-  get matSeparatorKeyCodes() { return this.separatorKeyCodes; }
-  set matSeparatorKeyCodes(v: number[]) { this.separatorKeyCodes = v; }
-
   @Input() placeholder: string = '';
 
   get empty(): boolean {

src/lib/sort/sort-header.ts

@@ -113,10 +113,6 @@ export class MatSortHeader implements MatSortable {
   set disableClear(v) { this._disableClear = coerceBooleanProperty(v); }
   private _disableClear: boolean;
 
-  @Input('mat-sort-header')
-  get _id() { return this.id; }
-  set _id(v: string) { this.id = v; }
-
   constructor(public _intl: MatSortHeaderIntl,
               changeDetectorRef: ChangeDetectorRef,
               @Optional() public _sort: MatSort,