Remove redundant initial assignment on field

[fedejeanne]

And declare the field private

[github-actions]

Test Results

   510 files  + 1     510 suites  +1   9m 47s ⏱️ +47s
 4 345 tests +37   4 331 ✅ +35   14 💤 +3  0 ❌  - 1 
16 613 runs  +37  16 502 ✅ +35  111 💤 +3  0 ❌  - 1 

Results for commit c4c1847. ± Comparison against base commit 4184369.