optimize: remove useless if judgments.

[github-ganyu]

Ⅰ. Describe what this PR did

remove useless if judgments.

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 #3505 (8589611) into develop (5a09c25) will increase coverage by 0.00%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             develop    #3505   +/-   ##
==========================================
  Coverage      51.60%   51.61%           
- Complexity      3390     3394    +4     
==========================================
  Files            621      621           
  Lines          20529    20528    -1     
  Branches        2559     2557    -2     
==========================================
+ Hits           10594    10595    +1     
- Misses          8873     8874    +1     
+ Partials        1062     1059    -3     

Impacted Files	Coverage Δ	Complexity Δ
...ta/spring/annotation/GlobalTransactionScanner.java	47.74% <75.00%> (+0.42%)	17.00 <0.00> (ø)
...n/src/main/java/io/seata/common/util/IdWorker.java	77.08% <0.00%> (-6.25%)	11.00% <0.00%> (-1.00%)
...in/java/io/seata/server/session/GlobalSession.java	84.09% <0.00%> (+0.45%)	72.00% <0.00%> (+1.00%)
...o/seata/server/coordinator/DefaultCoordinator.java	53.30% <0.00%> (+0.47%)	29.00% <0.00%> (+1.00%)
...torage/file/store/FileTransactionStoreManager.java	57.69% <0.00%> (+0.64%)	29.00% <0.00%> (+1.00%)

[funky-eyes]

LGTM. 请在changes文件夹中的2个md进行作者和pr信息登记

[slievrly]

LGTM