doc: fix BlockConnected incorrect comment #32893

1. 
   ismaelsadeeq commented at 5:23 pm on July 7, 2025: member

   This is a simple PR that fixes the BlockConnected validation interface notification comment, which incorrectly states that a vector of transactions removed from the mempool is as a parameter of the method.

   Originally, this was the case when the method was first introduced in #9725

   However, the method has since changed, and this is no longer accurate. Keeping the outdated comment is now misleading.

   This PR removes the information about the method parameters from the docstring, aligning it with the style of other notifications methods. As noticed in this PR, comments listing parameters can become stale and go uncorrected.

   Therefore, this PR simply removes the inaccurate comment without listing the current returned values.

2. doc: fix `BlockConnected` incorrect comment 4e69aa5701
3. DrahtBot added the label Docs on Jul 7, 2025
4. 
   DrahtBot commented at 5:23 pm on July 7, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/32893.

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5. 
   l0rinc commented at 7:33 pm on July 7, 2025: contributor

   Vector parameter was removed in https://github.com/bitcoin/bitcoin/commit/cdb893443cc16edf974f099b8485e04b3db1b1d7#diff-b169bd0694e8b0a87fd1097c8cfc1d6c8a926b49b375bb4141d37dcc624f975eL127-L131, the doc wasn’t updated.

   ACK 4e69aa5701a2dad3805ea26718e6a406adb8b748

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ismaelsadeeq DrahtBot l0rinc

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