With those two lenses you have nothing for wide angle or even neutral angle.
50mm will appear to be 80mm to the t4i (focal length times 1.6).
70-200 will appear to be 112-320mm to the t4i (focal length times 1.6).
A neutral angle (neither wide or telephoto) is considered to be 50mm.
For the t4i, you would need about a 35mm lens to cover neutral angle (35 times 1.6 = 56mm).
You should look at one of both of the new lenses Canon just introduced:
40mm and 18-135mm (the t4i will see them as 64mm and 28.8-216mm):
I want to purchase a Canon t4i but I don't know if i really need this 18-55 lens. I am thinking of getting the 50mm f1.4 and the 70-200 4L. Thinking of all this if i do get it with the kit lens i won't be using the kit lens much at all. Would i?