Bug 1018111 - [Flame][v1.4][MMS] Edit text messages, add video no size limit tips

increasing mmsSizeLimitation in the test to 2 won't change anything, as here size is 9 for the test so.  2/1024 will give 0.0 (after to.Fixed(1) ).. So i think mmsSizeLimitation = 1 is fine here.