Stop showing lockout message when lockout is disabled

[mogzol]

Resolves #451

[codecov]

Codecov Report

Merging #452 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master   #452   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          42     42           
  Lines        1634   1640    +6     
  Branches      102    103    +1     
=====================================
+ Hits         1634   1640    +6

Impacted Files	Coverage Δ
axes/tests/base.py	100% <100%> (ø)	⬆️
axes/tests/test_handlers.py	100% <100%> (ø)	⬆️
axes/handlers/cache.py	100% <100%> (ø)	⬆️
axes/handlers/database.py	100% <100%> (ø)	⬆️

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[aleksihakli]

Released in version 5.0.7 on PyPI.