fix(tests): use "afterEach" instead of "teardown" for sync settings tests
fix(tests): use "afterEach" instead of "teardown" for sync settings tests

Fixes TeamCity issues
vladikoff/fxa-content-server,npestana/fxa-content-server,ofer43211/fxa-content-server,atiqueahmedziad/fxa-content-server,ReachingOut/fxa-content-server,atiqueahmedziad/fxa-content-server,TDA/fxa-two-factor-auth,TDA/fxa-content-server,npestana/fxa-content-server,ofer43211/fxa-content-server,vladikoff/fxa-content-server,TDA/fxa-two-factor-auth,shane-tomlinson/fxa-content-server,TDA/fxa-content-server,ReachingOut/fxa-content-server,ReachingOut/fxa-content-server,swatilk/fxa-content-server,swatilk/fxa-content-server,mozilla/fxa-content-server,ofer43211/fxa-content-server,shane-tomlinson/fxa-content-server,atiqueahmedziad/fxa-content-server,vladikoff/fxa-content-server,TDA/fxa-content-server,swatilk/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,TDA/fxa-two-factor-auth,shane-tomlinson/fxa-content-server,npestana/fxa-content-server