fix lgtm alerts

[marandaneto]

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

fix lgtm alerts.

💡 Motivation and Context

integrate https://lgtm.com/projects/g/getsentry/sentry-android

💚 How did you test it?

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• All tests passing

🔮 Next steps

[codecov-io]

Codecov Report

Merging #219 into master will increase coverage by 0.16%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #219      +/-   ##
============================================
+ Coverage     58.91%   59.07%   +0.16%     
- Complexity      572      573       +1     
============================================
  Files            73       73              
  Lines          2648     2649       +1     
  Branches        235      235              
============================================
+ Hits           1560     1565       +5     
+ Misses          970      967       -3     
+ Partials        118      117       -1

Impacted Files	Coverage Δ	Complexity Δ
...n/java/io/sentry/core/transport/HttpTransport.java	59.49% <100%> (+0.51%)	6 <0> (ø)	⬇️
...c/main/java/io/sentry/core/DirectoryProcessor.java	85.18% <0%> (+14.81%)	7% <0%> (+1%)	⬆️

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