refactor(grid): remove leftover fits

Author: DDavidkov

projects/igniteui-angular/src/lib/grid/grid.component.spec.ts

@@ -31,7 +31,7 @@ describe('IgxGrid Component Tests', () => {
             }).compileComponents();
         }));
 
-        fit('should initialize a grid with columns from markup', () => {
+        it('should initialize a grid with columns from markup', () => {
             const fix = TestBed.createComponent(IgxGridMarkupDeclarationComponent);
             fix.detectChanges();
 
@@ -53,7 +53,7 @@ describe('IgxGrid Component Tests', () => {
             expect(fix.componentInstance.columnEventCount).toEqual(2);
         });
 
-        fit('should initialize a grid with autogenerated columns', () => {
+        it('should initialize a grid with autogenerated columns', () => {
             const fix = TestBed.createComponent(IgxGridTestComponent);
             fix.componentInstance.data = [
                 { Number: 1, String: '1', Boolean: true, Date: new Date(Date.now()) }