deprecate filtered attributes and reference

[ycchuang99]

Deprecate FilterAttributes class and its related functions.

Closes: #1535

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[brettmc]

Hi @ycchuang99 sorry I hadn't seen the related issue. Since those classes are all marked @internal, they should not be being directly used by anybody and we don't make any stability guarantees. So, they can be removed entirely.

[ycchuang99]

Hi @brettmc Thanks for the clarification! I'll go ahead and remove them. Appreciate the quick response!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.83%. Comparing base (39a2b48) to head (c0c9237).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1565      +/-   ##
============================================
- Coverage     70.90%   70.83%   -0.07%     
+ Complexity     2771     2756      -15     
============================================
  Files           409      407       -2     
  Lines          8365     8328      -37     
============================================
- Hits           5931     5899      -32     
+ Misses         2434     2429       -5     

Flag	Coverage Δ
8.1	70.57% <100.00%> (-0.04%)	⬇️
8.2	70.79% <100.00%> (+0.06%)	⬆️
8.3	70.76% <100.00%> (-0.03%)	⬇️
8.4	70.74% <100.00%> (+0.04%)	⬆️

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Files with missing lines	Coverage Δ
src/SDK/Trace/SpanLimitsBuilder.php	62.50% <100.00%> (+1.27%)	⬆️

... and 5 files with indirect coverage changes

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