MNT remove PA_C from SGD and (re-) use eta0 #31932
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Reference Issues/PRs
Follow-up of #29097.
What does this implement/fix? Explain your changes.
This PR removes the newly introduces (not yet released)
PA_C
parameter of SGD and reuses the already existingeta0
to specify the aggressiveness parameter for the passive-aggressive algorithm.Any other comments?
No deprecation cycle need if merged before 1.8 release.