chore(*): Update test according to new spec. Remove unneccesary change detect.

Author: MKirova

projects/igniteui-angular/src/lib/grids/columns/column.component.ts

@@ -527,7 +527,6 @@ export class IgxColumnComponent implements AfterContentInit, OnDestroy, ColumnTy
         this._maxWidth = value;
 
         this.grid.notifyChanges(true);
-        this.grid.cdr.detectChanges();
     }
     public get maxWidth(): string {
         return this._maxWidth;
@@ -985,7 +984,6 @@ export class IgxColumnComponent implements AfterContentInit, OnDestroy, ColumnTy
         }
         this._defaultMinWidth = value;
         this.grid.notifyChanges(true);
-        this.grid.cdr.detectChanges();
     }
     public get minWidth(): string {
         return !this._defaultMinWidth ? this.defaultMinWidth : this._defaultMinWidth;

projects/igniteui-angular/src/lib/grids/grid/column.spec.ts

@@ -1564,7 +1564,8 @@ describe('IgxGrid - Column properties #grid', () => {
             tick();
 
             let widths = grid.columns.map(x => x.width);
-            expect(widths).toEqual(['80px', '130px', '121px', '114px', '92px', '80px', '86px', '108px', '82px', '80px']);
+            // default min of 80px is disregarded for user-set widths, including auto.
+            expect(widths).toEqual(['68px', '130px', '121px', '114px', '92px', '72px', '86px', '108px', '82px', '69px']);
             fix.componentInstance.data = SampleTestData.contactInfoData();
             fix.detectChanges();
             tick();