Remove [DebuggerDisplay] from Paragraph

[martincostello]

Fixes #1476

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• I have commented on the issue above and discussed the intended changes
• A maintainer has signed off on the changes and the issue was assigned to me
• All newly added code is adequately covered by tests
• All existing tests are still running without errors
• No documentation changes are required.

Changes

Remove broken [DebuggerDisplay] attribute.

[patriksvensson]

I appreciate where you’re coming from, but wouldn't it be better to fix the problem?

[martincostello]

I considered that briefly, but that looked like a much more involved change to add a custom debugger proxy to start walking through the internal state, and not being familiar with the internals I didn't see anything obvious to use in its place as a trivial replacement.

[patriksvensson]

Merged! Thank you for your contribution. Much appreciated! 👍