[pdata] Remove deprecated API

[dmitryax]

No description provided.

[codecov]

Codecov Report

Base: 91.97% // Head: 91.99% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (5782bdf) compared to base (139cd3d).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6314      +/-   ##
==========================================
+ Coverage   91.97%   91.99%   +0.01%     
==========================================
  Files         219      219              
  Lines       13239    13237       -2     
==========================================
  Hits        12177    12177              
+ Misses        840      838       -2     
  Partials      222      222              

Impacted Files	Coverage Δ
pdata/pcommon/common.go	93.51% <ø> (+0.38%)	⬆️
pdata/plog/logs.go	96.00% <ø> (ø)
pdata/plog/plogotlp/logs.go	51.06% <ø> (ø)
pdata/pmetric/metric_data_point_flags.go	100.00% <ø> (ø)
pdata/pmetric/metrics.go	100.00% <ø> (ø)
pdata/pmetric/pmetricotlp/metrics.go	55.81% <ø> (ø)
pdata/ptrace/ptraceotlp/traces.go	51.06% <ø> (ø)
pdata/ptrace/traces.go	92.00% <ø> (ø)

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