update/remove parts of "Integrating with other web frameworks" section [SPR-11181]

[spring-projects-issues]

Brian Clozel opened SPR-11181 and commented

This sections contains references to:

• Struts 1 (EOL)
• Tapestry 3 and 4; Tapestry 5 has been around since 2009 (so previous versions may be de facto EOL)
• webwork itself seems to be over

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Affects: 4.0 RC2

Referenced from: commits 33dc867

[spring-projects-issues]

Phil Webb commented

Webwork has now been removed