Set chrome_value of --gfe2_reloadable_flag_quic_send_path_response2 to true. This value was set to false to unblock code merge, but didn't flip back afterwards.
Set chrome_value of --gfe2_reloadable_flag_quic_send_path_response2 to true. This value was set to false to unblock code merge, but didn't flip back afterwards.

Update flag description to reflect the actual behavior behind the flag.

PiperOrigin-RevId: 364662827
Change-Id: I554b3506aef3a842333f51dc2d7bfb82813a15db

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