Update QUIC tests setup.
Update QUIC tests setup.

the stream limits are now corrected through session setup. No need to adjust the config more.

gfe-relnote: test change only. not protected.
PiperOrigin-RevId: 309401136
Change-Id: Ib6f8dd73a433c3d9766390b1161a33c78436398c

google/quiche,google/quiche,google/quiche,google/quiche