Refactoring writeQuicDataToSocketWithoutCrypto() to call into writeQuicDataToSocket()
Refactoring writeQuicDataToSocketWithoutCrypto() to call into writeQuicDataToSocket()

Summary: PTO sending behavior has to be changed to implement per-number-packet-space PTO. This refactoring unifies the PTO sending code in order to avoid duplicating it in both functions.

Reviewed By: yangchi

Differential Revision: D19673324

fbshipit-source-id: 99b4ef5f86039ffec2b4330a6d890c5fc8df2cfd

facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst,facebookincubator/mvfst