[CORE] Drop the now-constant ">= 3.4" test gates

[jackylee-ch]

spark-3.4 is the lowest supported profile, so testWithMinSparkVersion(name, "3.4") is just test(name) with extra indirection. 57 call sites across 14 files, mostly in ScalarFunctionsValidateSuite, DeltaSuite and JsonFunctionsValidateSuite.

testWithRangeSparkVersion and ignoreWithSpecifiedSparkVersion in GlutenQueryTest have no callers either.

Gates on 3.5 / 4.0 / 4.1 are live and should stay. No behaviour change — the point is that every remaining version gate is then a real one.

Best done after #12981. Follow-up to #12807.