Unsubscribe from baseTexture loaded event on Texture::destroy

[maximgavrilov]

Description of change

Texture should not receive onBaseTextureUpdated once destroyed. But it left 'loaded' event subscription active.

Pre-Merge Checklist

• Tests and/or benchmarks are included
• Lint process passed (npm run lint)
• Tests passed (npm run test)

[codecov-io]

Codecov Report

Merging #6534 into dev will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff           @@
##              dev    #6534   +/-   ##
=======================================
  Coverage   82.38%   82.38%           
=======================================
  Files          38       38           
  Lines        1902     1902           
=======================================
  Hits         1567     1567           
  Misses        335      335           

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[bigtimebuddy]

Thank you @maximgavrilov!