message: ci: remove dual build of thirdparty deps.
  No longer needed after
diff: @@ -46,11 +46,3 @@ export THIRDPARTY_BUILD=/thirdparty_build
  export CPPFLAGS="-DNDEBUG"
  echo "Building opt deps ${DEPS}"
  "$(dirname "$0")"/build_and_install_deps.sh ${DEPS}
  -
  -ln -sf /thirdparty_build /thirdparty_build_opt
  -
  -export THIRDPARTY_BUILD=/thirdparty_build_dbg
  -export CPPFLAGS=""
  -echo "Building dbg deps ${DEPS}"
  -rm -f /tmp/*.dep
  -"$(dirname "$0")"/build_and_install_deps.sh ${DEPS}
  