fix message return before uuid write cause stuck

[dyy8888]

解决这个bug的代码#200

[dyy8888]

第一次提交删除map中信息时，忘记加锁了，已经重新提交

[codecov[bot]]

Codecov Report

Patch coverage has no change and project coverage change: -0.22 :warning:

Comparison is base (ff76ecf) 41.43% compared to head (0e52de0) 41.22%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #203 +/- ## ========================================== - Coverage 41.43% 41.22% -0.22% ========================================== Files 24 24 Lines 1962 1972 +10 ========================================== Hits 813 813 - Misses 903 913 +10 Partials 246 246 ``` | [Impacted Files](https://codecov.io/gh/FISCO-BCOS/go-sdk/pull/203?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FISCO-BCOS) | Coverage Δ | | |---|---|---| | [smcrypto/sm\_crypto.go](https://codecov.io/gh/FISCO-BCOS/go-sdk/pull/203?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FISCO-BCOS#diff-c21jcnlwdG8vc21fY3J5cHRvLmdv) | `35.89% <0.00%> (-5.28%)` | :arrow_down: | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FISCO-BCOS). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=FISCO-BCOS)

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.