[media] m88ds3103: remove dead code 2nd part

Coverity CID 1166051: Logically dead code (DEADCODE)

TS clock calculation could be more accurate, but as it is not,
remove those unused clock speeds.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>