revert [improvement](mv) Support to use cast when create sync materialized view #38008 #39378
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Proposed changes
this is brought by #38008
if use cast(FLOOR(MINUTE(time) / 15) as decimal(9, 0)) in group by clause when sync materialized view. if downgrade from 2.1.6 to 2.1.5 or upgrade 2.1.6 to 3.0.0
this may cause fe can not run. So revert the function.