Remove some useless operations when getting the text content

[calixteman]

The removed code has been added in #20624 and it's useless since these operations (i.e. save/restore) are already handled in preprocessor.read.

[calixteman]

/botio test

[moz-tools-bot]

From: Bot.io (Linux m4)

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Received

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

Live output at: http://54.241.84.105:8877/b6d6c54bdf75c66/output.txt

[moz-tools-bot]

From: Bot.io (Windows)

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Received

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

Live output at: http://54.193.163.58:8877/41ce2c6fcefc864/output.txt

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.55%. Comparing base (1f94023) to head (fd1fea5).

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #20904      +/-   ##
==========================================
- Coverage   62.57%   62.55%   -0.03%     
==========================================
  Files         173      173              
  Lines      121258   121255       -3     
==========================================
- Hits        75878    75851      -27     
- Misses      45380    45404      +24     

Flag	Coverage Δ
fonttest	7.66% <ø> (ø)
unittestcli	62.52% <100.00%> (-0.03%)	⬇️

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[moz-tools-bot]

From: Bot.io (Linux m4)

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Failed

Full output at http://54.241.84.105:8877/b6d6c54bdf75c66/output.txt

Total script time: 45.33 mins

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

[moz-tools-bot]

From: Bot.io (Windows)

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Failed

Full output at http://54.193.163.58:8877/41ce2c6fcefc864/output.txt

Total script time: 73.15 mins

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

[timvandermeij]

Nice find!