Remove duplicate test of passing glance params

Simply removes a duplicate test of the passing of page size parameters
from the TestGlanceImageService and adds the page_size parameter and
check to the similar test in TestDetail.test_detail_params_passed() test
method.

Change-Id: I2f7fafbb5e33e0f81fd8d493babc0d47966c6791
Merge "Remove duplicate test of passing glance params"