Merge branch 'jc/retire-cas-opt-name-constant' into maint-2.43

Code clean-up.

* jc/retire-cas-opt-name-constant:
  remote.h: retire CAS_OPT_NAME

diff --cc builtin/push.c
Simple merge

diff --cc builtin/send-pack.c
Simple merge

diff --cc remote.h
Simple merge