Remove useless assignment of availableSpace in the src/core/xfa/template.js file (issue 13829, 13835)

[Snuffleupagus]

Fixes #13835

[calixteman]

Thanks.

[Snuffleupagus]

/botio test

[pdfjsbot]

From: Bot.io (Windows)

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Received

Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://3.101.106.178:8877/40d7312449ae74a/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_test from @Snuffleupagus received. Current queue size: 0

Live output at: http://54.67.70.0:8877/e636647064d5798/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Failed

Full output at http://54.67.70.0:8877/e636647064d5798/output.txt

Total script time: 26.22 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

  errors: 637
  different ref/snapshot: 6
  different first/second rendering: 1

Image differences available at: http://54.67.70.0:8877/e636647064d5798/reftest-analyzer.html#web=eq.log

[pdfjsbot]

From: Bot.io (Windows)

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Failed

Full output at http://3.101.106.178:8877/40d7312449ae74a/output.txt

Total script time: 39.12 mins

• Font tests: Passed
• Unit tests: Passed
• Integration Tests: Passed
• Regression tests: FAILED

  different ref/snapshot: 6
  different first/second rendering: 1

Image differences available at: http://3.101.106.178:8877/40d7312449ae74a/reftest-analyzer.html#web=eq.log