Remove redundant invoke of trySyncFromUpstream

[Technoboy-]

Fix #3698

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Codecov Report

Merging #3699 (08524d9) into master (0fb159f) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #3699      +/-   ##
============================================
- Coverage     51.02%   50.98%   -0.04%     
+ Complexity     2336     2335       -1     
============================================
  Files           449      449              
  Lines         14034    14033       -1     
  Branches       1426     1426              
============================================
- Hits           7161     7155       -6     
- Misses         6384     6388       +4     
- Partials        489      490       +1     

Impacted Files	Coverage Δ	Complexity Δ
...rk/apollo/internals/LocalFileConfigRepository.java	77.30% <ø> (-0.16%)	27.00 <0.00> (ø)
...llo/configservice/controller/ConfigController.java	95.29% <100.00%> (ø)	26.00 <0.00> (ø)
...gservice/service/config/AbstractConfigService.java	94.11% <100.00%> (ø)	9.00 <0.00> (ø)
...ework/apollo/internals/RemoteConfigRepository.java	86.25% <0.00%> (-3.13%)	24.00% <0.00%> (-1.00%)

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[Technoboy-]

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