drop deprecated calendar transforms in v3

[archmoj]

plotly.js/src/components/calendars/index.js

Lines 236 to 250 in 206d117

	transforms: {
	filter: {
	valuecalendar: makeAttrs([
	'WARNING: All transforms are deprecated and may be removed from the API in next major version.',
	'Sets the calendar system to use for `value`, if it is a date.'
	].join(' ')),
	targetcalendar: makeAttrs([
	'WARNING: All transforms are deprecated and may be removed from the API in next major version.',
	'Sets the calendar system to use for `target`, if it is an',
	'array of dates. If `target` is a string (eg *x*) we use the',
	'corresponding trace attribute (eg `xcalendar`) if it exists,',
	'even if `targetcalendar` is provided.'
	].join(' '))
	}
	}