Removes double spacing from gridLayout which has empty rows or columns (#8855)

If row has no elements or only invisible elements, its size will be set to zero.

 When row expand ratio was set, its size will be assigned to the value according to an expand ratio.

If component takes several rows of the gridLayout, these rows are considered as non-empty and won't be removed.

Change-Id: I10ddd22a6c9535b9978769bab7b496e11a28b78a