Drop some convienience extensions

[martintmk]

Details on the issue fix or feature implementation

Dropping some convenience extensions. Mostly the cases when they accepted event callbacks. It's better to just use options for these cases.

Leaving the simple ones, that are good for demos and one-liner showcase of Polly V8.

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov]

Codecov Report

Merging #1283 (2e8dfeb) into main (53e01a8) will decrease coverage by 0.16%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1283      +/-   ##
==========================================
- Coverage   83.41%   83.25%   -0.16%     
==========================================
  Files         263      263              
  Lines        6348     6290      -58     
  Branches      993      993              
==========================================
- Hits         5295     5237      -58     
  Misses        844      844              
  Partials      209      209              

Flag	Coverage Δ
linux	83.25% <ø> (-0.16%)	⬇️
macos	83.25% <ø> (-0.16%)	⬇️
windows	83.25% <ø> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../Retry/RetryResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
...eout/TimeoutResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)
.../RateLimiterResilienceStrategyBuilderExtensions.cs	100.00% <ø> (ø)