Revert "[SPARK-30660][ML][PYSPARK] LinearRegression blockify input ve… #27484
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…ctors" This reverts commit d0c3e9f.
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Test build #118010 has finished for PR 27484 at commit
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What changes were proposed in this pull request?
Revert [SPARK-30660][ML][PYSPARK] LinearRegression blockify input vectors
Why are the changes needed?
It need more performace tests, specially on sparse datasets
Does this PR introduce any user-facing change?
Yes, param blockSize in removed
How was this patch tested?
reverted testsuites