code clean and modify log level

[slievrly]

Signed-off-by: slievrly slievrly@163.com

Ⅰ. Describe what this PR did

modify log level and code clean

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)?

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #1345 into develop will increase coverage by 0.02%.
The diff coverage is 28.57%.

@@              Coverage Diff              @@
##             develop    #1345      +/-   ##
=============================================
+ Coverage      48.63%   48.65%   +0.02%     
+ Complexity      1645     1643       -2     
=============================================
  Files            332      331       -1     
  Lines          11534    11533       -1     
  Branches        1428     1428              
=============================================
+ Hits            5609     5611       +2     
+ Misses          5302     5301       -1     
+ Partials         623      621       -2

Impacted Files	Coverage Δ	Complexity Δ
...ore/src/main/java/io/seata/core/lock/LockMode.java	0% <ø> (ø)	0 <0> (ø)	⬇️
...rc/main/java/io/seata/core/codec/CodecFactory.java	0% <ø> (ø)	0 <0> (ø)	⬇️
...rc/main/java/io/seata/core/rpc/ChannelManager.java	0% <0%> (ø)	0 <0> (ø)	⬇️
.../java/io/seata/server/coordinator/DefaultCore.java	59.64% <100%> (ø)	24 <0> (ø)	⬇️
.../java/io/seata/core/context/ContextCoreLoader.java	57.14% <100%> (ø)	1 <1> (ø)	⬇️
...atasource/undo/parser/ProtostuffUndoLogParser.java	42.85% <100%> (ø)	4 <1> (ø)	⬇️
...java/io/seata/rm/datasource/DataSourceManager.java	27.41% <12.5%> (ø)	7 <1> (ø)	⬇️
...n/java/io/seata/rm/datasource/ConnectionProxy.java	9.3% <14.28%> (-0.23%)	4 <0> (ø)
...server/store/file/FileTransactionStoreManager.java	47.38% <0%> (+1.39%)	19% <0%> (ø)	⬇️

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[xingfudeshi]

LGTM.

[sharajava]

it's okey to me.