Remove some deprecated code from the viewer

[Snuffleupagus]

• Revert "[GENERIC viewer] Add fallback logic for the old PDFPageView.update method signature"

  This reverts commit 8466204, since it's now been included in three official releases.

• Remove the deprecated PDFFindController.executeCommand method

  This partially reverts commit fa8c0ef, since it's now been included in two official releases.

[Snuffleupagus]

/botio integrationtest

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

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

Live output at: http://54.241.84.105:8877/712d6970b4d703b/output.txt

[pdfjsbot]

From: Bot.io (Windows)

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Received

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

Live output at: http://54.193.163.58:8877/9fb4336c5695bbd/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.241.84.105:8877/712d6970b4d703b/output.txt

Total script time: 4.07 mins

• Integration Tests: Passed

[pdfjsbot]

From: Bot.io (Windows)

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Success

Full output at http://54.193.163.58:8877/9fb4336c5695bbd/output.txt

Total script time: 6.77 mins

• Integration Tests: Passed

[timvandermeij]

/botio-linux preview

[pdfjsbot]

From: Bot.io (Linux m4)

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Received

Command cmd_preview from @timvandermeij received. Current queue size: 0

Live output at: http://54.241.84.105:8877/0b617afbd76f082/output.txt

[pdfjsbot]

From: Bot.io (Linux m4)

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Success

Full output at http://54.241.84.105:8877/0b617afbd76f082/output.txt

Total script time: 2.54 mins

Published

• Viewer: http://54.241.84.105:8877/0b617afbd76f082/web/viewer.html
• Viewer (legacy): http://54.241.84.105:8877/0b617afbd76f082/legacy/web/viewer.html

[timvandermeij]

Nice clean-up!